<PAGE>

                                  EXHIBIT 10.1

CONTACT: CUSTOMER SERVICES -- CTSLINK
         WELLS FARGO BANK MINNESOTA, N.A.
         SECURITIES ADMINISTRATION SERVICES
         7485 NEW HORIZON WAY
         FREDERICK, MD  21703
         WWW.CTSLINK.COM
         TELEPHONE:(301) 815-6600
         FAX:      (301) 315-6660

                                SMT SERIES 2004-6
                         RECORD DATE: FEBRUARY 28, 2005
                        DISTRIBUTION DATE: MARCH 21, 2005

                     CERTIFICATEHOLDER DISTRIBUTION SUMMARY

<TABLE>
<CAPTION>
                         Certificate     Certificate        Beginning
                           Class             Pass-         Certificate         Interest        Principal
Class        CUSIP       Description     Through Rate        Balance         Distribution     Distribution
------     ---------     -----------     ------------     --------------     ------------     -------------
<S>        <C>           <C>             <C>              <C>                <C>              <C>
 A-1       81744FCG0         SEN           3.70538%       423,665,098.86     1,308,198.46     12,420,701.73
 A-2       81744FCH8         SEN           2.87813%       160,491,703.78       384,929.99      4,012,092.74
A-3-A      81744FCJ4         SEN           3.01750%       170,673,003.06       429,171.49      4,949,093.98
A-3-B      81744FCU9         SEN           3.16000%         3,039,977.15         8,005.27         88,151.80
 X-A       81744FCK1          IO           0.74926%                 0.00       208,671.00              0.00
 X-B       81744FCL9          IO           0.46467%                 0.00         9,670.89              0.00
 B-1       81744FCN5         SUB           3.09813%        15,725,000.00        40,598.41              0.00
 B-2       81744FCP0         SUB           3.47813%         9,250,000.00        26,810.59              0.00
 B-3       81744FCQ8         SUB           3.70354%         5,550,000.00        17,128.86              0.00
 B-4       81744FCR6         SUB           3.70354%         2,313,000.00         7,138.57              0.00
 B-5       81744FCS4         SUB           3.70354%         2,313,000.00         7,138.57              0.00
 B-6       81744FCT2         SUB           3.70354%         4,166,584.59        12,859.25              0.00
 A-R       81744FCM7          R            3.35638%                 0.00             0.35              0.00
                                                          --------------     ------------     -------------
Totals                                                    797,187,367.44     2,460,321.70     21,470,040.25
                                                          --------------     ------------     -------------

<CAPTION>
                           Current        Ending                          Cumulative
                           Realized     Certificate         Total          Realized
Class        CUSIP           Loss         Balance        Distribution        Loss
------     ---------       --------    --------------    -------------    ----------
<S>        <C>             <C>         <C>               <C>              <C>
 A-1       81744FCG0         0.00      411,244,397.13    13,728,900.19       0.00
 A-2       81744FCH8         0.00      156,479,611.04     4,397,022.73       0.00
A-3-A      81744FCJ4         0.00      165,723,909.08     5,378,265.47       0.00
A-3-B      81744FCU9         0.00        2,951,825.35        96,157.07       0.00
 X-A       81744FCK1         0.00                0.00       208,671.00       0.00
 X-B       81744FCL9         0.00                0.00         9,670.89       0.00
 B-1       81744FCN5         0.00       15,725,000.00        40,598.41       0.00
 B-2       81744FCP0         0.00        9,250,000.00        26,810.59       0.00
 B-3       81744FCQ8         0.00        5,550,000.00        17,128.86       0.00
 B-4       81744FCR6         0.00        2,313,000.00         7,138.57       0.00
 B-5       81744FCS4         0.00        2,313,000.00         7,138.57       0.00
 B-6       81744FCT2         0.00        4,166,584.59        12,859.25       0.00
 A-R       81744FCM7         0.00                0.00             0.35       0.00
                             ----      --------------    -------------       ----
Totals                       0.00      775,717,327.19    23,930,361.95       0.00
                             ----      --------------    -------------       ----
</TABLE>

All distributions required by the Pooling and Servicing Agreement have been
calculated by the Certificate Administrator on behalf of the Trustee.

<PAGE>

                        PRINCIPAL DISTRIBUTION STATEMENT

<TABLE>
<CAPTION>
                                          Beginning          Scheduled            Unscheduled
               Original Face             Certificate         Principal            Principal                              Realized
 Class            Amount                   Balance          Distribution         Distribution          Accretion         Loss (1)
------        --------------           --------------       ------------        -------------          ---------         --------
<S>           <C>                      <C>                  <C>                 <C>                    <C>               <C>
  A-1         500,000,000.00           423,665,098.86        1,487.39           12,419,214.34             0.00              0.00
  A-2         185,687,000.00           160,491,703.78          254.75            4,011,837.99             0.00              0.00
  A-3         196,500,000.00           170,673,003.06        1,497.05            4,947,596.93             0.00              0.00
  X-1           3,500,000.00             3,039,977.15           26.66               88,125.14             0.00              0.00
  X-2                   0.00                     0.00            0.00                    0.00             0.00              0.00
  X-B                   0.00                     0.00            0.00                    0.00             0.00              0.00
  B-1          15,725,000.00            15,725,000.00            0.00                    0.00             0.00              0.00
  B-2           9,250,000.00             9,250,000.00            0.00                    0.00             0.00              0.00
  B-3           5,550,000.00             5,550,000.00            0.00                    0.00             0.00              0.00
  B-4           2,313,000.00             2,313,000.00            0.00                    0.00             0.00              0.00
  B-5           2,313,000.00             2,313,000.00            0.00                    0.00             0.00              0.00
  B-6           4,166,584.59             4,166,584.59            0.00                    0.00             0.00              0.00
  A-R                 100.00                     0.00            0.00                    0.00             0.00              0.00
              --------------           --------------        --------           -------------             ----              ----
Totals        925,004,684.59           797,187,367.44        3,265.85           21,466,774.40             0.00              0.00
              --------------           --------------        --------           -------------             ----              ----

<CAPTION>
              Total Principal         Ending Certificate        Ending Certificate         Total Principal
 Class           Reduction                 Balance                  Percentage               Distribution
------        ---------------         ------------------        ------------------         ---------------
<S>           <C>                     <C>                       <C>                        <C>
  A-1          12,420,701.73            411,244,397.13              0.82248879              12,420,701.73
  A-2           4,012,092.74            156,479,611.04              0.84270633               4,012,092.74
  A-3           4,949,093.98            165,723,909.08              0.84337867               4,949,093.98
  X-1              88,151.80              2,951,825.35              0.84337867                  88,151.80
  X-2                   0.00                      0.00              0.00000000                       0.00
  X-B                   0.00                      0.00              0.00000000                       0.00
  B-1                   0.00             15,725,000.00              1.00000000                       0.00
  B-2                   0.00              9,250,000.00              1.00000000                       0.00
  B-3                   0.00              5,550,000.00              1.00000000                       0.00
  B-4                   0.00              2,313,000.00              1.00000000                       0.00
  B-5                   0.00              2,313,000.00              1.00000000                       0.00
  B-6                   0.00              4,166,584.59              1.00000000                       0.00
  A-R                   0.00                      0.00              0.00000000                       0.00
              --------------            --------------              ----------              -------------
Totals         21,470,040.25            775,717,327.19              0.83860908              21,470,040.25
              --------------            --------------              ----------              -------------

</TABLE>

(1)   Amount does not include excess special hazard, bankruptcy, or fraud losses
      unless otherwise disclosed. Please refer to the prospectus supplement for
      a full description.

                    PRINCIPAL DISTRIBUTION FACTORS STATEMENT

<TABLE>
<CAPTION>
                                       Beginning            Scheduled         Unscheduled
             Original Face            Certificate           Principal          Principal                            Realized
Class           Amount                  Balance            Distribution       Distribution        Accretion         Loss (3)
-----       --------------           -------------         ------------       ------------        ----------       ----------
<S>         <C>                      <C>                   <C>                <C>                 <C>              <C>
 A-1        500,000,000.00            847.33019772          0.00297478         24.83842868        0.00000000       0.00000000
 A-2        185,687,000.00            864.31308481          0.00137193         21.60537889        0.00000000       0.00000000
 A-3        196,500,000.00            868.56490107          0.00761858         25.17861033        0.00000000       0.00000000
 X-1          3,500,000.00            868.56490000          0.00761714         25.17861143        0.00000000       0.00000000
 X-2                  0.00              0.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 X-B                  0.00              0.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-1         15,725,000.00           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-2          9,250,000.00           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-3          5,550,000.00           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-4          2,313,000.00           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-5          2,313,000.00           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 B-6          4,166,584.59           1000.00000000          0.00000000          0.00000000        0.00000000       0.00000000
 A-R                100.00              0.00000000          0.00000000          0.00000000        0.00000000       0.00000000

<CAPTION>
            Total Principal         Ending Certificate        Ending Certificate           Total Principal
Class          Reduction                 Balance                  Percentage                Distribution
-----       ---------------         ------------------        ------------------           ---------------
<S>         <C>                     <C>                       <C>                          <C>
 A-1           24.84140346              822.48879426               0.82248879                24.84140346
 A-2           21.60675082              842.70633399               0.84270633                21.60675082
 A-3           25.18622891              843.37867216               0.84337867                25.18622891
 X-1           25.18622857              843.37867143               0.84337867                25.18622857
 X-2            0.00000000                0.00000000               0.00000000                 0.00000000
 X-B            0.00000000                0.00000000               0.00000000                 0.00000000
 B-1            0.00000000             1000.00000000               1.00000000                 0.00000000
 B-2            0.00000000             1000.00000000               1.00000000                 0.00000000
 B-3            0.00000000             1000.00000000               1.00000000                 0.00000000
 B-4            0.00000000             1000.00000000               1.00000000                 0.00000000
 B-5            0.00000000             1000.00000000               1.00000000                 0.00000000
 B-6            0.00000000             1000.00000000               1.00000000                 0.00000000
 A-R            0.00000000                0.00000000               0.00000000                 0.00000000
</TABLE>

(3)   Amount does not include excess special hazard, bankruptcy, or fraud losses
      unless otherwise disclosed. Please refer to the prospectus supplement for
      a full description.
<PAGE>

                         INTEREST DISTRIBUTION STATEMENT

<TABLE>
<CAPTION>
                                            Beginning                        Payment of                  Non-
                             Current       Certificate/        Current        Unpaid       Current     Supported
         Original Face     Certificate       Notional          Accrued       Interest      Interest    Interest       Realized
Class        Amount           Rate           Balance           Interest      Shortfall    Shortfall    Shortfall      Loss (4)
------   --------------    -----------    --------------     ------------    ----------   ---------    ---------      --------
<S>      <C>               <C>            <C>                <C>             <C>          <C>          <C>            <C>
  A-1    500,000,000.00      3.70538%     423,665,098.86     1,308,198.46       0.00         0.00         0.00          0.00
  A-2    185,687,000.00      2.87813%     160,491,703.78       384,929.99       0.00         0.00         0.00          0.00
  A-3    196,500,000.00      3.01750%     170,673,003.06       429,171.49       0.00         0.00         0.00          0.00
  X-1      3,500,000.00      3.16000%       3,039,977.15         8,005.27       0.00         0.00         0.00          0.00
  X-2              0.00      0.74926%     334,204,683.99       208,671.00       0.00         0.00         0.00          0.00
  X-B              0.00      0.46467%      24,975,000.00         9,670.89       0.00         0.00         0.00          0.00
  B-1     15,725,000.00      3.09813%      15,725,000.00        40,598.41       0.00         0.00         0.00          0.00
  B-2      9,250,000.00      3.47813%       9,250,000.00        26,810.59       0.00         0.00         0.00          0.00
  B-3      5,550,000.00      3.70354%       5,550,000.00        17,128.86       0.00         0.00         0.00          0.00
  B-4      2,313,000.00      3.70354%       2,313,000.00         7,138.57       0.00         0.00         0.00          0.00
  B-5      2,313,000.00      3.70354%       2,313,000.00         7,138.57       0.00         0.00         0.00          0.00
  B-6      4,166,584.59      3.70354%       4,166,584.59        12,859.25       0.00         0.03         0.00          0.00
  A-R            100.00      3.35638%               0.00             0.00       0.00         0.00         0.00          0.00
         --------------                                      ------------       ----         ----         ----          ----
Totals   925,004,684.59                                      2,460,321.35       0.00         0.03         0.00          0.00
         --------------                                      ------------       ----         ----         ----          ----

<CAPTION>
                                         Remaining           Ending
                                           Unpaid           Certificate/
               Total Interest             Interest          Notational
Class           Distribution             Shortfall           Balance
------         --------------            ---------         --------------
<S>            <C>                       <C>               <C>
  A-1           1,308,198.46                0.00           411,244,397.13
  A-2             384,929.99                0.00           156,479,611.04
  A-3             429,171.49                0.00           165,723,909.08
  X-1               8,005.27                0.00             2,951,825.35
  X-2             208,671.00                0.00           325,155,345.47
  X-B               9,670.89                0.00            24,975,000.00
  B-1              40,598.41                0.00            15,725,000.00
  B-2              26,810.59                0.00             9,250,000.00
  B-3              17,128.86                0.00             5,550,000.00
  B-4               7,138.57                0.00             2,313,000.00
  B-5               7,138.57                0.00             2,313,000.00
  B-6              12,859.25                0.03             4,166,584.59
  A-R                   0.35                0.00                     0.00
                ------------                ----
Totals          2,460,321.70                0.03
                ------------                ----
</TABLE>

(4)   Amount does not include excess special hazard, bankruptcy, or fraud losses
      unless otherwise disclosed. Please refer to the prospectus supplement for
      a full description.

<PAGE>

                     INTEREST DISTRIBUTION FACTORS STATEMENT

<TABLE>
<CAPTION>
                                                Beginning                     Payment of                     Non-
                                 Current       Certificate/      Current        Unpaid       Current       Supported
              Original Face   Certificate        Notional        Accrued       Interest      Interest      Interest      Realized
Class (5)         Amount          Rate           Balance         Interest      Shortfall    Shortfall      Shortfall     Loss (6)
---------    --------------   -----------     -------------     ----------    ----------    ----------     ----------   ----------
<S>          <C>              <C>             <C>               <C>           <C>           <C>            <C>          <C>
   A-1       500,000,000.00     3.70538%       847.33019772     2.61639692    0.00000000    0.00000000     0.00000000   0.00000000
   A-2       185,687,000.00     2.87813%       864.31308481     2.07300452    0.00000000    0.00000000     0.00000000   0.00000000
   A-3       196,500,000.00     3.01750%       868.56490107     2.18407883    0.00000000    0.00000000     0.00000000   0.00000000
   X-1         3,500,000.00     3.16000%       868.56490000     2.28722000    0.00000000    0.00000000     0.00000000   0.00000000
   X-2                 0.00     0.74926%       866.51788624     0.54103716    0.00000000    0.00000000     0.00000000   0.00000000
   X-B                 0.00     0.46467%      1000.00000000     0.38722282    0.00000000    0.00000000     0.00000000   0.00000000
   B-1        15,725,000.00     3.09813%      1000.00000000     2.58177488    0.00000000    0.00000000     0.00000000   0.00000000
   B-2         9,250,000.00     3.47813%      1000.00000000     2.89844216    0.00000000    0.00000000     0.00000000   0.00000000
   B-3         5,550,000.00     3.70354%      1000.00000000     3.08628108    0.00000000    0.00000000     0.00000000   0.00000000
   B-4         2,313,000.00     3.70354%      1000.00000000     3.08628188    0.00000000    0.00000000     0.00000000   0.00000000
   B-5         2,313,000.00     3.70354%      1000.00000000     3.08628188    0.00000000    0.00000000     0.00000000   0.00000000
   B-6         4,166,584.59     3.70354%      1000.00000000     3.08628079    0.00000000    0.00000000     0.00000000   0.00000000
   A-R               100.00     3.35638%         0.00000000     0.00000000    0.00000000    0.00000000     0.00000000   0.00000000

<CAPTION>
                                             Remaining
                                               Unpaid
                        Total Interest       Interest             Ending Certificate/
Class (5)                Distribution        Shortfall            Notational Balance
---------               --------------       ----------           -------------------
<S>                     <C>                  <C>                  <C>
   A-1                     2.61639692        0.00000000                822.48879426
   A-2                     2.07300452        0.00000000                842.70633399
   A-3                     2.18407883        0.00000000                843.37867216
   X-1                     2.28722000        0.00000000                843.37867143
   X-2                     0.54103716        0.00000000                843.05497844
   X-B                     0.38722282        0.00000000               1000.00000000
   B-1                     2.58177488        0.00000000               1000.00000000
   B-2                     2.89844216        0.00000000               1000.00000000
   B-3                     3.08628108        0.00000000               1000.00000000
   B-4                     3.08628188        0.00000000               1000.00000000
   B-5                     3.08628188        0.00000000               1000.00000000
   B-6                     3.08628079        0.00000000               1000.00000000
   A-R                     3.50000000        0.00000000                  0.00000000
</TABLE>

(5)   Per $1 denomination

(6)   Amount does not include excess special hazard, bankruptcy, or fraud losses
      unless otherwise disclosed. Please refer to the prospectus supplement for
      a full description.

                       CERTIFICATEHOLDER ACCOUNT STATEMENT

                               CERTIFICATE ACCOUNT

<TABLE>
<S>                                                                     <C>
Beginning Balance                                                                0.00

Deposits
    Payments of Interest and Principal                                  24,181,845.28
    Liquidations, Insurance Proceeds, Reserve Funds                              0.00
    Proceeds from Repurchased Loans                                              0.00
    Other Amounts (Servicer Advances)                                       52,377.39
    Realized Losses (Gains, Subsequent Expenses & Recoveries)                    0.00
    Prepayment Penalties                                                         0.00
                                                                        -------------
Total Deposits                                                          24,234,222.67

Withdrawals
    Reimbursement for Servicer Advances                                     50,099.09
    Payment of Service Fee                                                 253,761.63
    Payment of Interest and Principal                                   29,930,361.95
                                                                        -------------
Total Withdrawals (Pool Distribution Amount)                            24,234,222.67

Ending Balance                                                                   0.00
                                                                        =============
</TABLE>

<PAGE>

                    PREPAYMENT/CURTAILMENT INTEREST SHORTFALL

<TABLE>
<S>                                                                     <C>
Total Prepayment/Curtailment Interest Shortfall                         0.00
Servicing Fee Support                                                   0.00
                                                                        ----
Non-Supported Prepayment Curtailment Interest Shortfall                 0.00
                                                                        ====
</TABLE>

                                 SERVICING FEES
<TABLE>
<S>                                                                     <C>
Gross Servicing Fee                                                     249,443.53
Master Servicing Fee                                                      4,318.10
Supported Prepayment/Curtailment Interest Shortfall                           0.00
                                                                        ----------

Net Servicing Fee                                                       253,761.63
                                                                        ==========
</TABLE>

                                 OTHER ACCOUNTS
<TABLE>
<CAPTION>
                                            Beginning        Current         Current       Ending
         Account Type                         Balance       Withdrawals      Deposits      Balance
---------------------------------           ---------       -----------      --------     --------
<S>                                         <C>             <C>              <C>          <C>
Class X-A Pool 2 Comp Sub Account            4,500.00          0.00           0.00        4,500.00
Class X-A Pool 3 Comp Sub Account            4,500.00          0.00           0.00        4,500.00
Class X-B Sub Account                        1,000.00          0.00           0.00        1,000.00
</TABLE>
<PAGE>

             LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT

                     DELINQUENT

<TABLE>
<CAPTION>
              No. of       Principal
               Loans        Balance
<S>          <C>         <C>
0-29 Days           0             0.00
30 Days            43    14,921,404.48
60 Days             2     1,042,297.82
90 Days             2       885,599.98
120 Days            0             0.00
150 Days            0             0.00
180+ Days           0             0.00
             --------    -------------
                   47    16,847,302.28

              No. of       Principal
               Loans        Balance

0-29 Days    0.000000%        0.000000%
30 Days      1.735971%        1.923559%
60 Days      0.080743%        0.134365%
90 Days      0.080743%        0.113907%
120 Days     0.000000%        0.000000%
150 Days     0.000000%        0.000000%
180+ Days    0.000000%        0.000000%
             --------    -------------
             1.897457%        2.171831%
</TABLE>

                  BANKRUPTCY

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                 FORECLOSURE

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                     REO

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                    TOTAL

<TABLE>
<CAPTION>
              No. of       Principal
               Loans        Balance
<S>          <C>         <C>
0-29 Days           0             0.00
30 Days            43    14,921,404.48
60 Days             2     1,042,297.82
90 Days             2       885,599.98
120 Days            0             0.00
150 Days            0             0.00
180+ Days           0             0.00
             --------    -------------
                   47    16,847,302.28

              No. of       Principal
               Loans        Balance

0-29 Days    0.000000%        0.000000%
30 Days      1.735971%        1.923559%
60 Days      0.080743%        0.134365%
90 Days      0.080743%        0.113907%
120 Days     0.000000%        0.000000%
150 Days     0.000000%        0.000000%
180+ Days    0.000000%        0.000000%
             --------    -------------
             1.897457%        2.171831%
</TABLE>

<TABLE>
<S>                                         <C>   <C>                                           <C>   <C>               <C>
Current Period Class A Insufficient Funds:  0.00  Principal Balance of Contaminated Properties  0.00  Periodic Advance  52,377.39
</TABLE>

<TABLE>
<CAPTION>
             Original $    Original%     Current $     Current %   Current Class %  Prepayment %
           -------------  -----------  -------------  -----------  ---------------  ------------
<S>        <C>            <C>          <C>            <C>          <C>              <C>
Class A    39,317,584.59  4.25052816%  39,317,584.59  5.06854536%    94.931455%       0.000000%
Class B-1  23,592,584.59  2.55053677%  23,592,584.59  3.04138940%     2.027156%      39.994827%
Class B-2  14,342,584.59  1.55054183%  14,342,584.59  1.84894472%     1.192445%      23.526369%
Class B-3   8,792,584.59  0.95054487%   8,792,584.59  1.13347792%     0.715467%      14.115821%
Class B-4   6,479,584.59  0.70049208%   6,479,584.59  0.83530229%     0.298176%       5.882864%
Class B-5   4,166,584.59  0.45043930%   4,166,584.59  0.53712666%     0.298176%       5.882864%
Class B-6           0.00  0.00000000%           0.00  0.00000000%     0.537127%      10.597255%
</TABLE>

Please refer to the prospectus supplement for a full description of loss
exposure
<PAGE>

                           DELINQUENCY STATUS BY GROUP

                  DELINQUENT
GROUP ONE

<TABLE>
<CAPTION>
              No. of       Principal
              Loans         Balance
<S>          <C>         <C>
0-29 Days           0            0.00
30 Days            24    8,710,418.96
60 Days             1      648,192.21
90 Days             0            0.00
120 Days            0            0.00
150 Days            0            0.00
180+ Days           0            0.00
             --------    ------------
                   25    9,358,611.17

              No. of       Principal
              Loans         Balance

0-29 Days    0.000000%       0.000000%
30 Days      1.700921%       2.009605%
60 Days      0.070872%       0.149546%
90 Days      0.000000%       0.000000%
120 Days     0.000000%       0.000000%
150 Days     0.000000%       0.000000%
180+ Days    0.000000%       0.000000%
             --------    ------------
             1.771793%       2.159151%
</TABLE>

                  BANKRUPTCY

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                 FORECLOSURE

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                      REO

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
 0-29 Days          0        0.00
 30 Days            0        0.00
 60 Days            0        0.00
 90 Days            0        0.00
 120 Days           0        0.00
 150 Days           0        0.00
 180+ Days          0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

 0-29 Days   0.000000%   0.000000%
 30 Days     0.000000%   0.000000%
 60 Days     0.000000%   0.000000%
 90 Days     0.000000%   0.000000%
 120 Days    0.000000%   0.000000%
 150 Days    0.000000%   0.000000%
 180+ Days   0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                    TOTAL

<TABLE>
<CAPTION>
              No. of       Principal
               Loans        Balance
<S>          <C>         <C>
0-29 Days           0            0.00
30 Days            24    8,710,418.96
60 Days             1      648,192.21
90 Days             0            0.00
120 Days            0            0.00
150 Days            0            0.00
180+ Days           0            0.00
             --------    ------------
                   25    9,358,611.17

              No. of       Principal
               Loans        Balance

0-29 Days    0.000000%       0.000000%
30 Days      1.700921%       2.009605%
60 Days      0.070872%       0.149546%
90 Days      0.000000%       0.000000%
120 Days     0.000000%       0.000000%
150 Days     0.000000%       0.000000%
180+ Days    0.000000%       0.000000%
             --------    ------------
             1.771793%       2.159151%
</TABLE>

                  DELINQUENT
GROUP TWO

<TABLE>
<CAPTION>
              No. of       Principal
               Loans        Balance
<S>          <C>         <C>
0-29 Days           0            0.00
30 Days             6    1,560,425.65
60 Days             1      394,105.61
90 Days             0            0.00
120 Days            0            0.00
150 Days            0            0.00
180+ Days           0            0.00
             --------    ------------
                    7    1,954,531.26

              No. of       Principal
               Loans        Balance

0-29 Days    0.000000%       0.000000%
30 Days      1.252610%       0.947291%
60 Days      0.208768%       0.239250%
90 Days      0.000000%       0.000000%
120 Days     0.000000%       0.000000%
150 Days     0.000000%       0.000000%
180+ Days    0.000000%       0.000000%
             --------    ------------
             1.461378%       1.186541%
</TABLE>

                  BANKRUPTCY

<TABLE>
<CAPTION>
             1.183654%
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                FORECLOSURE

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                      REO

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0        0.00
30 Days             0        0.00
60 Days             0        0.00
90 Days             0        0.00
120 Days            0        0.00
150 Days            0        0.00
180+ Days           0        0.00
             --------    --------
                    0        0.00

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%   0.000000%
30 Days      0.000000%   0.000000%
60 Days      0.000000%   0.000000%
90 Days      0.000000%   0.000000%
120 Days     0.000000%   0.000000%
150 Days     0.000000%   0.000000%
180+ Days    0.000000%   0.000000%
             --------    --------
             0.000000%   0.000000%
</TABLE>

                     TOTAL

<TABLE>
<CAPTION>
              No. of     Principal
               Loans      Balance
<S>          <C>         <C>
0-29 Days           0            0.00
30 Days             6    1,560,425.65
60 Days             1      394,105.61
90 Days             0            0.00
120 Days            0            0.00
150 Days            0            0.00
180+ Days           0            0.00
             ---------   ------------
                    7    1,954,531.26

              No. of     Principal
               Loans      Balance

0-29 Days    0.000000%       0.000000%
30 Days      1.252610%       0.947291%
60 Days      0.208768%       0.239250%
90 Days      0.000000%       0.000000%
120 Days     0.000000%       0.000000%
150 Days     0.000000%       0.000000%
180+ Days    0.000000%       0.000000%
             --------    ------------
             1.461378%       1.186541%
</TABLE>
<PAGE>

                  DELINQUENT
GROUP THREE

<TABLE>
<CAPTION>
              No. of        Principal
               Loans         Balance
<S>          <C>          <C>
0-29 Days           0             0.00
30 Days            13     4,650,559.87
60 Days             0             0.00
90 Days             2       883,599.98
120 Days            0             0.00
150 Days            0             0.00
180+ Days           0             0.00
             --------     ------------
                   15     5,534,159.85

              No. of        Principal
               Loans         Balance

0-29 Days    0.000000%        0.000000%
30 Days      2.214651%        2.619234%
60 Days      0.000000%        0.000000%
90 Days      0.340716%        0.497651%
120 Days     0.000000%        0.000000%
150 Days     0.000000%        0.000000%
180+ Days    0.000000%        0.000000%
             --------     ------------
             2.555366%        3.116884%
</TABLE>

                  BANKRUPTCY

<TABLE>
<CAPTION>
             1.183654%
               No. of     Principal
               Loans       Balance
<S>          <C>          <C>
0-29 Days            0        0.00
30 Days              0        0.00
60 Days              0        0.00
90 Days              0        0.00
120 Days             0        0.00
150 Days             0        0.00
180+ Days            0        0.00
             ---------    --------
                     0        0.00

               No. of     Principal
               Loans       Balance

0-29 Days    0.000000%    0.000000%
30 Days      0.000000%    0.000000%
60 Days      0.000000%    0.000000%
90 Days      0.000000%    0.000000%
120 Days     0.000000%    0.000000%
150 Days     0.000000%    0.000000%
180+ Days    0.000000%    0.000000%
             --------     --------
             0.000000%    0.000000%
</TABLE>

                  FORECLOSURE

<TABLE>
<CAPTION>
              No. of      Principal
              Loans        Balance
<S>          <C>          <C>
0-29 Days           0         0.00
30 Days             0         0.00
60 Days             0         0.00
90 Days             0         0.00
120 Days            0         0.00
150 Days            0         0.00
180+ Days           0         0.00
             --------     --------
                    0         0.00

              No. of      Principal
              Loans        Balance

0-29 Days    0.000000%    0.000000%
30 Days      0.000000%    0.000000%
60 Days      0.000000%    0.000000%
90 Days      0.000000%    0.000000%
120 Days     0.000000%    0.000000%
150 Days     0.000000%    0.000000%
180+ Days    0.000000%    0.000000%
             --------     --------
             0.000000%    0.000000%
</TABLE>

                      REO

<TABLE>
<CAPTION>
              No. of      Principal
              Loans        Balance
<S>          <C>          <C>
0-29 Days           0         0.00
30 Days             0         0.00
60 Days             0         0.00
90 Days             0         0.00
120 Days            0         0.00
150 Days            0         0.00
180+ Days           0         0.00
             --------     --------
                    0         0.00

              No. of      Principal
              Loans        Balance

0-29 Days    0.000000%    0.000000%
30 Days      0.000000%    0.000000%
60 Days      0.000000%    0.000000%
90 Days      0.000000%    0.000000%
120 Days     0.000000%    0.000000%
150 Days     0.000000%    0.000000%
180+ Days    0.000000%    0.000000%
             --------     --------
             0.000000%    0.000000%
</TABLE>

                     TOTAL

<TABLE>
<CAPTION>
              No. of        Principal
               Loans         Balance
<S>          <C>          <C>
0-29 Days           0             0.00
30 Days            13     4,650,559.87
60 Days             0             0.00
90 Days             2       883,599.98
120 Days            0             0.00
150 Days            0             0.00
180+ Days           0             0.00
             --------     ------------
                   15     5,534,159.85

               No. of       Principal
               Loans         Balance

0-29 Days    0.000000%        0.000000%
30 Days      2.214651%        2.619234%
60 Days      0.000000%        0.000000%
90 Days      0.340716%        0.497651%
120 Days     0.000000%        0.000000%
150 Days     0.000000%        0.000000%
180+ Days    0.000000%        0.000000%
             --------     ------------
             2.555366%        3.116884%
</TABLE>

<PAGE>

                              COLLATERAL STATEMENT

<TABLE>
<CAPTION>
Collateral Description                                  Mixed Arm
<S>                                                  <C>
Weighted Average Gross Coupon                              4.086051%
Weighted Average Net Coupon                                3.710566%
Weighted Average Pass-Through Rate                         3.703504%
Weighted Average Maturity (Stepdown Calculation)                336

Beginning Scheduled Collateral Loan Count                     2,527
Number of Loans Paid in Full                                     50
Ending Scheduled Collateral Loan Count                        2,477

Beginning Scheduled Collateral Balance               797,187,367.44
Ending Scheduled Collateral Balance                  775,717,327.19
Ending Actual Collateral Balance at 28-Feb-2005      775,718,679.69

Monthly P&I Constant                                   2,717,722.73
Special Servicing Fee                                          0.00
Prepayment Penalties                                           0.00
Realization Loss Amount                                        0.00
Cumulative Realized Loss                                       0.00

Class A Optimal Amount                                23,809,016.46

Scheduled Principal                                        3,265.85
Unscheduled Principal                                 21,466,774.40
</TABLE>

MISCELLANEOUS REPORTING
<TABLE>
<S>                                    <C>
Rapid Prepayment Condition?            NO
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
             GROUP                   GROUP ONE         GROUP TWO       GROUP THREE          TOTAL
<S>                              <C>                <C>             <C>                <C>
Collateral Description           6 Month LIBOR ARM       Mixed ARM  6 Month LIBOR ARM       Mixed ARM
Weighted Average Coupon Rate              4.087807        4.097035           4.071613        4.086051
Weighted Average Net Rate                 3.712468        3.721702           3.695628        3.710566
Pass-Through Rate                         3.705377        3.714111           3.689127        3.703504
Weighted Average Maturity                      337             332                337             336
Record Date                             02/28/2005      02/28/2005         02/28/2005      02/28/2005
Principal and Interest Constant       1,520,309.51      576,355.93         621,057.29    2,717,722.73
Beginning Loan Count                         1,441             488                598           2,527
Loans Paid in Full                              30               9                 11              50
Ending Loan Count                            1,411             479                587           2,477
Beginning Scheduled Balance         445,859,254.68  168,737,016.42     182,591,096.34  797,187,367.44
Ending Scheduled Balance            433,438,552.95  164,724,923.68     177,553,850.56  775,717,327.19
Scheduled Principal                       1,487.39          254.75           1,523.71        3,265.85
Unscheduled Principal                12,419,214.34    4,011,837.99       5,035,722.07   21,466,774.40
Scheduled Interest                    1,518,822.12      576,101.18         619,533.58    2,714,456.88
Servicing Fee                           139,456.77       52,777.08          57,209.68      249,443.53
Master Servicing Fee                      2,415.07          913.99             989.04        4,318.10
Trustee Fee                                   0.00            0.00               0.00            0.00
FRY Amount                                    0.00            0.00               0.00            0.00
Special Hazard Fee                            0.00            0.00               0.00            0.00
Other Fee                                   219.92          153.45               0.00          373.37
Pool Insurance Fee                            0.00            0.00               0.00            0.00
Spread 1                                      0.00            0.00               0.00            0.00
Spread 2                                      0.00            0.00               0.00            0.00
Spread 3                                      0.00            0.00               0.00            0.00
Net Interest                          1,376,730.36      522,256.66         561,334.86    2,460,321.88
Realized Loss Amount                          0.00            0.00               0.00            0.00
Cumulative Realized Loss                      0.00            0.00               0.00            0.00
Percentage of Cumulative Losses               0.00            0.00               0.00            0.00
Prepayment Penalties                          0.00            0.00               0.00            0.00
Special Servicing Fee                         0.00            0.00               0.00            0.00
</TABLE>

<PAGE>

MISCELLANEOUS REPORTING

<TABLE>
<S>                              <C>
Group One
Pro-Rata Senior Percent           95.022161%
Senior Percent                   100.000000%
Senior Prepay Percent            100.000000%
Subordinate Percent                0.000000%
Subordinate Prepay Percent         0.000000%
Interest Transfer Amount               0.00
Principal Transfer Amount              0.00


Group Two
Pro-Rata Senior Percent           95.113513%
Senior Percent                   100.000000%
Senior Prepay Percent            100.000000%
Subordinate Percent                0.000000%
Subordinate Prepay Percent         0.000000%
Interest Transfer Amount               0.00
Principal Transfer Amount              0.00


Group Three
Pro-Rata Senior Percent           95.137706%
Senior Percent                   100.000000%
Senior Prepay Percent            100.000000%
Subordinate Percent                0.000000%
Subordinate Prepay Percent         0.000000%
Interest Transfer Amount               0.00
Principal Transfer Amount              0.00
</TABLE>