<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 2005-3
                         RECORD DATE: SEPTEMBER 30, 2005
                       DISTRIBUTION DATE: OCTOBER 20, 2005

                     CERTIFICATEHOLDER DISTRIBUTION SUMMARY

<TABLE>
<CAPTION>
                   Certificate   Certificate     Beginning
                      Class     Pass-Through    Certificate     Interest
Class     CUSIP    Description      Rate          Balance     Distribution
------  ---------  -----------  ------------  --------------  ------------
<S>     <C>        <C>          <C>           <C>             <C>
  A-R   81744FHN0      SEN        4.80671%              0.00          0.00
  A-1   81744FHK6      SEN        3.99625%    292,958,560.66    975,439.32
  B-1   81744FHP5      SUB        4.16625%      6,208,000.00     21,549.56
  B-2   81744FHQ3      SUB        4.43625%      3,287,000.00     12,149.46
  B-3   81744FHR1      SUB        4.80220%      2,374,000.00      9,498.67
  B-4   81744FHS9      SUB        4.80220%      1,095,000.00      4,381.23
  B-5   81744FHT7      SUB        4.80220%        731,000.00      2,924.82
  B-6   81744FHU4      SUB        4.80220%      1,826,168.26      7,306.72
  X-A   81744FHL4       IO        0.80595%              0.00    196,724.01
  X-B   81744FHM2       IO        0.54248%              0.00      4,291.64
                                              --------------  ------------
Totals                                        308,479,728.92  1,234,265.43
                                              ==============  ============

<CAPTION>
                       Current      Ending                     Cumulative
          Principal   Realized    Certificate       Total       Realized
Class   Distribution    Loss        Balance      Distribution     Loss
------  ------------  --------  --------------  -------------  ----------
<S>     <C>           <C>       <C>             <C>            <C>
  A-R           0.00    0.00              0.00           0.00     0.00
  A-1   9,025,792.26    0.00    283,932,768.40  10,001,231.58     0.00
  B-1           0.00    0.00      6,208,000.00      21,549.56     0.00
  B-2           0.00    0.00      3,287,000.00      12,149.46     0.00
  B-3           0.00    0.00      2,374,000.00       9,498.67     0.00
  B-4           0.00    0.00      1,095,000.00       4,381.23     0.00
  B-5           0.00    0.00        731,000.00       2,924.82     0.00
  B-6           0.00    0.00      1,826,168.26       7,306.72     0.00
  X-A           0.00    0.00              0.00     196,724.01     0.00
  X-B           0.00    0.00              0.00       4,291.64     0.00
        ------------    ----    --------------  -------------     ----
Totals  9,025,792.26    0.00    299,453,936.66  10,260,057.69     0.00
        ============    ====    ==============  =============     ====
</TABLE>

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

                        PRINCIPAL DISTRIBUTION STATEMENT

<TABLE>
<CAPTION>
           Original        Beginning      Scheduled    Unscheduled
             Face         Certificate     Principal     Principal              Realized
Class       Amount          Balance     Distribution  Distribution  Accretion  Loss (1)
------  --------------  --------------  ------------  ------------  ---------  --------
<S>     <C>             <C>             <C>           <C>           <C>        <C>
  A-R           100.00            0.00        0.00            0.00     0.00      0.00
  A-1   349,687,000.00  292,958,560.66    1,705.41    9,024,086.85     0.00      0.00
  B-1     6,208,000.00    6,208,000.00        0.00            0.00     0.00      0.00
  B-2     3,287,000.00    3,287,000.00        0.00            0.00     0.00      0.00
  B-3     2,374,000.00    2,374,000.00        0.00            0.00     0.00      0.00
  B-4     1,095,000.00    1,095,000.00        0.00            0.00     0.00      0.00
  B-5       731,000.00      731,000.00        0.00            0.00     0.00      0.00
  B-6     1,826,168.26    1,826,168.26        0.00            0.00     0.00      0.00
  X-A             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
        --------------  --------------    --------    ------------     ----      ----
Totals  365,208,268.26  308,208,268.26    1,705.41    9,024,086.85     0.00      0.00
        ==============  ==============    ========    ============     ====      ====

<CAPTION>
            Total         Ending         Ending        Total
          Principal     Certificate   Certificate    Principal
Class     Reduction       Balance      Percentage  Distribution
------  ------------  --------------  -----------  ------------
<S>     <C>           <C>             <C>          <C>
  A-R           0.00            0.00   0.00000000          0.00
  A-1   9,025,792.26  283,932,768.40   0.81196261  9,025,792.26
  B-1           0.00    6,208,000.00   1.00000000          0.00
  B-2           0.00    3,287,000.00   1.00000000          0.00
  B-3           0.00    2,374,000.00   1.00000000          0.00
  B-4           0.00    1,095,000.00   1.00000000          0.00
  B-5           0.00      731,000.00   1.00000000          0.00
  B-6           0.00    1,826,168.26   1.00000000          0.00
  X-A           0.00            0.00   0.00000000          0.00
  X-B           0.00            0.00   0.00000000          0.00
        ------------  --------------   ----------  ------------
Totals  9,025,792.26  299,453,936.66   0.81995388  9,025,792.26
        ============  ==============   ==========  ============
</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.

<PAGE>

                    PRINCIPAL DISTRIBUTION FACTORS STATEMENT

<TABLE>
<CAPTION>
           Original       Beginning      Scheduled    Unscheduled
             Face        Certificate     Principal     Principal                Realized
Class       Amount         Balance     Distribution  Distribution   Accretion   Loss (3)
------  --------------  -------------  ------------  ------------  ----------  ----------
<S>     <C>             <C>            <C>           <C>           <C>         <C>
  A-R           100.00     0.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  A-1   349,687,000.00   837.77366805   0.00487696    25.80618339  0.00000000  0.00000000
  B-1     6,208,000.00  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  B-2     3,287,000.00  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  B-3     2,374,000.00  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  B-4     1,095,000.00  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  B-5       731,000.00  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  B-6     1,826,168.26  1000.00000000   0.00000000     0.00000000  0.00000000  0.00000000
  X-A             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

<CAPTION>
           Total         Ending        Ending        Total
         Principal    Certificate   Certificate    Principal
Class    Reduction      Balance      Percentage  Distribution
------  -----------  -------------  -----------  ------------
<S>     <C>          <C>            <C>          <C>
  A-R    0.00000000     0.00000000   0.00000000    0.00000000
  A-1   25.81106035   811.96260770   0.81196261   25.81106035
  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
  X-A    0.00000000     0.00000000   0.00000000    0.00000000
  X-B    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.

                         INTEREST DISTRIBUTION STATEMENT

<TABLE>
<CAPTION>
                                        Beginning                  Payment of                Non-
           Original       Current     Certificate/      Current      Unpaid     Current   Supported
             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-R           100.00    4.80671%             0.00          0.00     0.00        0.00        0.00     0.00
  A-1   349,687,000.00    3.99625%   292,958,560.66    975,613.04     0.00        0.00      173.72     0.00
  B-1     6,208,000.00    4.16625%     6,208,000.00     21,553.40     0.00        0.00        3.84     0.00
  B-2     3,287,000.00    4.43625%     3,287,000.00     12,151.63     0.00        0.00        2.16     0.00
  B-3     2,374,000.00    4.80220%     2,374,000.00      9,500.36     0.00        0.00        1.69     0.00
  B-4     1,095,000.00    4.80220%     1,095,000.00      4,382.01     0.00        0.00        0.78     0.00
  B-5       731,000.00    4.80220%       731,000.00      2,925.34     0.00        0.00        0.52     0.00
  B-6     1,826,168.26    4.80220%     1,826,168.26      7,308.03     0.00        0.00        1.30     0.00
  X-A             0.00    0.80595%   292,958,560.66    196,759.04     0.00        0.00       35.03     0.00
  X-B             0.00    0.54248%     9,495,000.00      4,292.40     0.00        0.00        0.76     0.00
        --------------                               ------------     ----        ----      ------     ----
Totals  365,208,268.26                               1,234,485.25     0.00        0.00      219.80     0.00
        ==============                               ============     ====        ====      ======     ====

<CAPTION>
                      Remaining      Ending
            Total       Unpaid    Certificate/
          Interest     Interest    Notational
 Class  Distribution  Shortfall      Balance
------  ------------  ---------  --------------
<S>     <C>           <C>        <C>
  A-R           0.00     0.00              0.00
  A-1     975,439.32     0.00    283,932,768.40
  B-1      21,549.56     0.00      6,208,000.00
  B-2      12,149.46     0.00      3,287,000.00
  B-3       9,498.67     0.00      2,374,000.00
  B-4       4,381.23     0.00      1,095,000.00
  B-5       2,924.82     0.00        731,000.00
  B-6       7,306.72     0.00      1,826,168.26
  X-A     196,724.01     0.00    283,932,768.40
  X-B       4,291.64     0.00      9,495,000.00
        ------------     ----
Totals  1,234,265.43     0.00
        ============     ====
</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
Class    Original Face   Certificate      Notional       Accrued     Interest     Interest     Interest     Realized
 (5)        Amount           Rate         Balance       Interest     Shortfall    Shortfall    Shortfall    Loss (6)
-----   --------------   -----------   -------------   ----------   ----------   ----------   ----------   ----------
<S>     <C>              <C>           <C>             <C>          <C>          <C>          <C>          <C>
 A-R            100.00     4.80671%       0.00000000   0.00000000   0.00000000   0.00000000   0.00000000   0.00000000
 A-1    349,687,000.00     3.99625%     837.77366805   2.78996085   0.00000000   0.00000000   0.00049679   0.00000000
 B-1      6,208,000.00     4.16625%    1000.00000000   3.47187500   0.00000000   0.00000000   0.00061856   0.00000000
 B-2      3,287,000.00     4.43625%    1000.00000000   3.69687557   0.00000000   0.00000000   0.00065713   0.00000000
 B-3      2,374,000.00     4.80220%    1000.00000000   4.00183656   0.00000000   0.00000000   0.00071188   0.00000000
 B-4      1,095,000.00     4.80220%    1000.00000000   4.00183562   0.00000000   0.00000000   0.00071233   0.00000000
 B-5        731,000.00     4.80220%    1000.00000000   4.00183311   0.00000000   0.00000000   0.00071135   0.00000000
 B-6      1,826,168.26     4.80220%    1000.00000000   4.00183825   0.00000000   0.00000000   0.00071187   0.00000000
 X-A              0.00     0.80595%     837.77366805   0.56267188   0.00000000   0.00000000   0.00010018   0.00000000
 X-B              0.00     0.54248%    1000.00000000   0.45206951   0.00000000   0.00000000   0.00008004   0.00000000

<CAPTION>
                        Remaining       Ending
            Total        Unpaid      Certificate/
Class     Interest      Interest      Notational
 (5)    Distribution    Shortfall      Balance
-----   ------------   ----------   -------------
<S>     <C>            <C>          <C>
 A-R     0.00000000    0.00000000      0.00000000
 A-1     2.78946406    0.00000000    811.96260770
 B-1     3.47125644    0.00000000   1000.00000000
 B-2     3.69621539    0.00000000   1000.00000000
 B-3     4.00112468    0.00000000   1000.00000000
 B-4     4.00112329    0.00000000   1000.00000000
 B-5     4.00112175    0.00000000   1000.00000000
 B-6     4.00112090    0.00000000   1000.00000000
 X-A     0.56257170    0.00000000    811.96260770
 X-B     0.45198947    0.00000000   1000.00000000
</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                          10,339,325.85
   Liquidations, Insurance Proceeds, Reserve Funds                      0.00
   Proceeds from Repurchased Loans                                      0.00
   Other Amounts (Servicer Advances)                               21,835.68
   Realized Losses (Gains, Subsequent Expenses & Recoveries)            0.00
   Prepayment Penalties                                                 0.00
                                                               -------------
Total Deposits                                                 10,361,161.53

Withdrawals
   Reimbursement for Servicer Advances                                  0.00
   Payment of Service Fee                                         101,103.84
   Payment of Interest and Principal                           10,260,057.69
                                                               -------------
Total Withdrawals (Pool Distribution Amount)                   10,361,161.53

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

<PAGE>

                    PREPAYMENT/CURTAILMENT INTEREST SHORTFALL

<TABLE>
<S>                                                       <C>
Total Prepayment/Curtailment Interest Shortfall           219.80
Servicing Fee Support                                       0.00
                                                          ------
Non-Supported Prepayment Curtailment Interest Shortfall   219.80
                                                          ======
</TABLE>

                                 SERVICING FEES

<TABLE>
<S>                                                   <C>
Gross Servicing Fee                                    96,862.24
Master Servicing Fee                                    4,241.60
Supported Prepayment/Curtailment Interest Shortfall         0.00
                                                      ----------
Net Servicing Fee                                     101,103.84
                                                      ==========
</TABLE>

                                 OTHER ACCOUNTS

<TABLE>
<CAPTION>
Account Type   Beginning Balance   Current Withdrawals   Current Deposits   Ending Balance
------------   -----------------   -------------------   ----------------   --------------
<S>            <C>                 <C>                   <C>                <C>
Reserve Fund        5,000.00               0.00                0.00            5,000.00
Reserve Fund        5,000.00               0.00                0.00            5,000.00
</TABLE>

<PAGE>

             LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT

<TABLE>
<CAPTION>
          DELINQUENT                      BANKRUPTCY                    FORECLOSURE
-------------------------------  ----------------------------  ----------------------------
           No. of    Principal              No. of  Principal             No. of  Principal
            Loans     Balance                Loans   Balance               Loans   Balance
           ------  ------------             ------  ---------             ------  ---------
<S>        <C>     <C>           <C>        <C>     <C>        <C>        <C>     <C>
0-29 Days      0           0.00  0-29 Days      0      0.00    0-29 Days      0      0.00
30 Days       13   4,737,364.11  30 Days        0      0.00    30 Days        0      0.00
60 Days        2     214,275.95  60 Days        0      0.00    60 Days        0      0.00
90 Days        1     280,700.00  90 Days        0      0.00    90 Days        0      0.00
120 Days       0           0.00  120 Days       0      0.00    120 Days       0      0.00
150 Days       0           0.00  150 Days       0      0.00    150 Days       0      0.00
180+ Days      0           0.00  180+ Days      0      0.00    180+ Days      0      0.00
             ---   ------------               ---      ----                 ---      ----
              16   5,232,340.06                 0      0.00                   0      0.00

<CAPTION>
             REO                          TOTAL
----------------------------  -------------------------------
           No. of  Principal             No. of    Principal
            Loans    Balance              Loans     Balance
           ------  ---------             ------  ------------
<S>        <C>     <C>        <C>        <C>     <C>
0-29 Days      0      0.00    0-29 Days      0           0.00
30 Days        0      0.00    30 Days       13   4,737,364.11
60 Days        0      0.00    60 Days        2     214,275.95
90 Days        0      0.00    90 Days        1     280,700.00
120 Days       0      0.00    120 Days       0           0.00
150 Days       0      0.00    150 Days       0           0.00
180+ Days      0      0.00    180+ Days      0           0.00
             ---      ----                 ---   ------------
               0      0.00                  16   5,232,340.06
</TABLE>

<TABLE>
<CAPTION>
          DELINQUENT                      BANKRUPTCY                      FORECLOSURE
------------------------------  ------------------------------  ------------------------------
            No. of   Principal              No. of   Principal              No. of   Principal
             Loans    Balance                Loans     Balance               Loans    Balance
           --------  ---------             --------  ---------             --------  ---------
<S>        <C>       <C>        <C>        <C>       <C>        <C>        <C>       <C>
0-29 Days  0.000000% 0.000000%  0-29 Days  0.000000% 0.000000%  0-29 Days  0.000000% 0.000000%
30 Days    1.450893% 1.581995%  30 Days    0.000000% 0.000000%  30 Days    0.000000% 0.000000%
60 Days    0.223214% 0.071555%  60 Days    0.000000% 0.000000%  60 Days    0.000000% 0.000000%
90 Days    0.111607% 0.093737%  90 Days    0.000000% 0.000000%  90 Days    0.000000% 0.000000%
120 Days   0.000000% 0.000000%  120 Days   0.000000% 0.000000%  120 Days   0.000000% 0.000000%
150 Days   0.000000% 0.000000%  150 Days   0.000000% 0.000000%  150 Days   0.000000% 0.000000%
180+ Days  0.000000% 0.000000%  180+ Days  0.000000% 0.000000%  180+ Days  0.000000% 0.000000%
           --------  --------              --------  --------              --------  --------
           1.785714% 1.747288%             0.000000% 0.000000%             0.000000% 0.000000%

<CAPTION>
              REO                             TOTAL
-------------------------------  ------------------------------
             No. of   Principal               No. of  Principal
             Loans     Balance                Loans    Balance
           ---------  ---------             --------  ---------
<S>        <C>        <C>        <C>        <C>       <C>
0-29 Days  0.000000%  0.000000%  0-29 Days  0.000000% 0.000000%
30 Days    0.000000%  0.000000%  30 Days    1.450893% 1.581995%
60 Days    0.000000%  0.000000%  60 Days    0.223214% 0.071555%
90 Days    0.000000%  0.000000%  90 Days    0.111607% 0.093737%
120 Days   0.000000%  0.000000%  120 Days   0.000000% 0.000000%
150 Days   0.000000%  0.000000%  150 Days   0.000000% 0.000000%
180+ Days  0.000000%  0.000000%  180+ Days  0.000000% 0.000000%
           --------   --------              --------  --------
           0.000000%  0.000000%             1.785714% 1.747288%
</TABLE>

Current Period Class A Insufficient Funds: 0.00

Principal Balance of Contaminated Properties 0.00

Periodic Advance 21,835.68

<PAGE>

                              COLLATERAL STATEMENT

<TABLE>
<CAPTION>
Collateral Description                                Mixed ARM
----------------------                             --------------
<S>                                                <C>
Weighted Average Gross Coupon                            5.187675%
Weighted Average Net Coupon                              4.810877%
Weighted Average Pass-Through Rate                       4.794377%
Weighted Average Maturity (Stepdown Calculation)              332

Beginning Scheduled Collateral Loan Count                     924
Number of Loans Paid in Full                                   28
Ending Scheduled Collateral Loan Count                        896

Beginning Scheduled Collateral Balance             308,479,728.92
Ending Scheduled Collateral Balance                299,453,936.66
Ending Actual Collateral Balance at 30-Sept-2005   299,454,983.63

Monthly P&I Constant                                 1,335,282.59
Special Servicing Fee                                        0.00
Prepayment Penalties                                         0.00
Realized Loss Amount                                         0.00
Cumulative Realized Loss                                     0.00

Scheduled Principal                                      1,705.41
Unscheduled Principal                                9,024,086.85
</TABLE>

MISCELLANEOUS REPORTING

<TABLE>
<S>                                 <C>
Senior Percentage                    94.9685%
Senior Prepayment Percentage        100.0000%
Subordinate Prepayment Percentage   0.000000%
Subordinate Percentage                5.0315%
</TABLE>