<PAGE>

                                                                   Exhibit 10.24


February 1, 2000


Earlychildhood.com LLC
2 Lower Ragsdale Dr., Suite 200
Monterey, CA  93940
Attn:  Kelly Crampton

RE:  Rent Escalation


Dear Mr. Crampton:

According to the terms of your lease, rent for the above referenced premises is
due to escalate effective March 1, 2000.  As per your Addendum to Lease #2, a
copy of which is attached, please find your new rate listed below:

                               Old Rate            New Rate
                               --------            --------

Base Rent                     $20,636.50          $21,009.36
Sales Tax                       1,341.37            1,365.61
                              ----------          ----------
Total                         $21,977.87          $22,374.97

Please make note of this new rent amount and be sure that all checks are made
payable to R.B.I. HOLDING COMPANY, INC.  As always, if you have any questions
please do not hesitate to contact me at your earliest convenience.

Sincerely,


/s/ Donna Lance
Donna Lance
General Manager


Enclosures

cc:  Tenant Lease File

DL/da
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                               ADDENDUM TO LEASE
                                       #2
                                       --


Attached to and forming a part of the Lease Agreement between R.B.I. HOLDING
CO., INC. F/K/A/ RUBIN BROTHERS, INC. Landlord, and EARLYCHILDHOOD.COM LLC,
Tenant, dated the 22ND day of APRIL, 1996 and subsequent Addendum to Lease #1
and Assignment and Assumption of Lease Agreement, herein collectively referred
to as the "Lease".

Landlord and Tenant hereby agree to the following:

1.   The Lease relates to the following leasehold premises:

     Office and warehouse facility totaling 37,920 SF ("Existing Premises")
     consisting of the following:

     200 SF of finished office and 37,720 SF of non-air conditioned warehouse
     space.

2.   Landlord and Tenant hereby agree that with an effective date of November 1,
     1999 the following terms and conditions will be added to said Lease,
     namely:

     a)   The "Existing Premises" shall be expanded by approximately 35,730 SF,
          consisting of an additional 5,000 SF of air conditioned office space
          and an additional 30,730 SF of non-air conditioned warehouse space
          located at the contiguous east portion of 6746 Stuart Avenue,
          Jacksonville, Florida  32254, (the "Expansion Premises").

          Therefore, the total leasehold premises ("Total Premises") shall
          consist of approximately 73,650 SF comprised of approximately 5,200 SF
          of finished office space and 68,450 SF of non-air conditioned
          warehouse space.

     b)   The rental rate for the Existing Premises shall remain in accordance
          with the following schedule as described in Addendum to Lease #1:

            November 1, 1999   thru   February 29, 2000 - $ 9,322.00 Per Month
            March 1, 2000      thru   February 28, 2001 - $ 9,694.88 Per Month
            March 1, 2001      thru   February 28, 2002 - $10,082.68 Per Month
            March 1, 2002      thru   February 28, 2003 - $10,485.99 Per Month
            March 1, 2003      thru   February 29, 2004 - $10,905.43 Per Month

          Plus applicable sales and use tax currently calculated at 6.5%.

          The rental rate for the Expansion Premises shall be based on $3.80 per
          SF (gross rate) and shall be in accordance with the following
          schedule:
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            November 1, 1999   thru  February 29, 2000 - $11,314.50 Per Month
            March 1, 2000      thru  February 28, 2001 - $11,314.50 Per Month
            March 1, 2001      thru  February 28, 2002 - $11,767.08 Per Month
            March 1, 2002      thru  February 28, 2003 - $12,237.76 Per Month
            March 1, 2003      thru  February 29, 2004 - $12,727.27 Per Month

3.   Security Deposit:  The existing security deposit held by the Landlord in
     the amount of $4,331.63 will be increased by $3,168.37 for a total of
     $7,500.00 and shall remain in place until the expiration of the Lease or
     any additional extensions thereof.

4.   Tenant Improvements:

     Landlord shall be responsible for the following:

     a.   Create one (1) 10' x 10' opening in the wall between the Existing
          Premises and the Expansion Premises.  Location to be provided by
          Tenant and approved by Landlord.  Said approval by Landlord will not
          be unreasonably withheld.

5.   The effective date of this Addendum is the 1st day of November, 1999.

6.   Landlord and Tenant ratify and affirm all other provisions of the Lease
     dated the 22nd day of April, 1996 and subsequent Assignment and Assumption
     of Lease Agreement dated May 5, 1999.

IN WITNESS WHEREOF, THE Landlord and Tenant executed the foregoing Addendum to
Lease #2 on the 20th day of October, 1999.

In the presence of:



/s/ Donna Lance                        Landlord:  R.B.I. Holding Co., Inc.
------------------------------                    f/k/a/ Rubin Brothers, Inc.

/s/ Mark Stuart                        By: /s/ Leslie A. Rubin
------------------------------            ------------------------------
As to Landlord                            Leslie A. Rubin, as Agent


                                       Tenant:  Earlychildhood.com LLC
/s/
------------------------------
                                       By: /s/ Kelly Crampton
/s/                                       ------------------------------
------------------------------
As to Tenant                           Its: /s/ Kelly Crampton
                                          ------------------------------
                                           10-15-99

<PAGE>

                               ADDENDUM TO LEASE
                                       #1

Attached to and forming a part of that certain Lease Agreement between RUBIN
BROTHERS, INC., Landlord, and QTL CORPORATION Tenant, dated the 22nd day of
April, 1996 (the "Lease").

Landlord and Tenant hereby agree to the following:

1.   The Lease relates to the following leasehold premises:

     Consisting of approximately 20,480 square feet of office and non-
     air conditioned warehouse space located at 6746 Stuart Avenue,
     Jacksonville, Florida 32254.

2.   Landlord and Tenant hereby agree that with an effective date of March 1,
     1999 the following terms and conditions will be made to said Lease, namely:

     A.   The leasehold premises shall be expanded by approximately 17,440 SF of
          non-air conditioned warehouse located at the contiguous west portion
          of 6746 Stuart Avenue, Jacksonville, Florida 32254, currently occupied
          by Denny's Payless.

          Therefore, the total leasehold premises shall consist of approximately
          37,920 SF comprises of approximately 200 SF of finished office space
          and 37,720 SF of non-air conditioned warehouse space.

     B.   The term of the Lease shall be extended for a period of five (5) years
          beginning on March 1, 1999 (the "Commencement Date") and ending on
          February 29, 2004, (the "Expiration Date").

     C.   1)  The monthly rent shall be in accordance with the following
              schedule, which reflects a four percent (4%) annual escalation
              (the "Monthly Rent Schedule"):

                  Year One       -    $ 9,322.00 Per Month
                  Year Two       -    $ 9,694.88 Per Month
                  Year Three     -    $10,082.68 Per Month
                  Year Four      -    $10,485,99 Per Month
                  Year Five      -    $10,905.43 Per Month

              All rental quotes are subject to applicable sales and use taxes,
              currently calculated at 6.5%.

          2)  The Tenant, at its option, may take delivery of the space, in an
              "as is" condition, beginning Monday, February15, 1999. This early
              occupancy is available as the previous tenant is expected to have
              vacated the space on or before that date.
<PAGE>

          The prorated monthly rent for the period from 15 February to 28
          February 1999 (13 calendar days) is (One Thousand Eight Hundred
          Thirty-Two Dollars and Thirty-Five Cents) $1,832.35.

     D.   Security Deposit:  The existing security deposit held by the Landlord
          in the amount of $4,331.63 will NOT be increased and shall remain in
          place until the termination of the lease or any additional extensions
          thereof.

     E.   Tenant Improvements:  Tenant has agreed to take the expansion space in
          an "as is" condition.  Landlord and Tenant have agreed that certain
          work and improvements will be made to the premises by the Landlord as
          follows:

          1.   Create one (1) 10' x 10' opening in the wall between the existing
               premises and the expansion space.  Location to be provided by
               Tenant and approved by Landlord.  Said approval by Landlord will
               not be unreasonably withheld.

          2.   Repair and/or replace all bulbs and ballasts as required to
               provide proper and ample illumination through the entire
               leasehold premises.

          3.   Should Tenant so request, Landlord shall remove the chain link
               storage partitions currently located within the expansion space.

     F.   Tenant shall be responsible for converting the electrical service
          account in the expansion space into its own name.

3.   The effective date of this Addendum is the 12th day of February, 1999.

4.   Landlord and Tenant ratify and affirm all other provisions of the Lease
     dated the 22nd day of April, 1996.


IN WITNESS WHEREOF, the Landlord and Tenant executed the foregoing Addendum to
Lease #1 on the 12th day of February, 1999.


In the presence of:


/s/ Donna Lance                          Landlord:  R.B.I. Holding Co., Inc.
-------------------------------

/s/                                      By: /s/ Leslie A. Rubin
-------------------------------              -------------------------------
As to Landlord                                 Leslie A. Rubin, as Agent


/S/                                      TENANT QTL CORPORATION
-------------------------------

/s/                                      By: /s/ Jeffrey Grace
-------------------------------              -------------------------------
As to Tenant                                   Jeffrey Grace

                                         Its:  Controller

<PAGE>

                             RULES AND REGULATIONS


1.   Lessor agrees to furnish Lessee two keys without charge.  Additional keys
     will be furnished at a nominal charge.  Leasee shall not change locks or
     install additional locks on doors without prior written consent of Lessor.
     All keys to leased premises shall be surrendered to Lessor upon termination
     of this Lease.

2.   Lessee will refer all contractors, contractor's representatives and
     installation technicians rendering any service on or to the leased premises
     for Lessee to Lessor for Lessor's approval before performance of any
     contractual service.  Lessee's contractors and installation technicians
     shall comply with Lessor's rules and regulations pertaining to construction
     and installation.  This provision shall apply to all work performed on or
     about the leased premises or project, including installation of telephones,
     telegraph equipment, electrical devices and attachments and installation of
     any nature affecting floors, walls, woodwork, trim, windows, ceilings and
     equipment or any other physical portion of the leased premises or project.

3.   Lessee shall not at any time occupy any part of the leased premises or
     project as sleeping or lodging quarters.

4.   Lessee shall not place, install or operate on the leased premises or in any
     part of the building any engine or stove or thereon or therein, or place or
     use in or about the leased premises or project any explosives, gasoline,
     kerosene, oil, acids, caustics, or any flammable, explosive or hazardous
     material without written consent of Lessor.

5.   Lessor will not be responsible for lost or stolen personal property,
     equipment, money or jewelry from the leased premises or the project
     regardless of whether such loss occurs when the area is locked against
     entry or not.

6.   No dogs, cats, fowl, or other animals shall be brought into or kept in or
     about the leased premises or project.

7.   Employees of Lessor shall not receive or carry messages for or to any
     Lessee or other person or contract with or render free or paid services to
     any Lessee or to any of Lessee's agents, employees or invitees.

8.   None of the parking, plaza, recreation or lawn areas, entries, passages,
     doors, elevators, hallways or stairways shall be blocked or obstructed or
     any rubbish, litter, trash, or material of any nature placed, emptied or
     thrown into these areas or such area used by Lessee's agents, employees or
     invitees at any time for purposes inconsistent with their designation by
     Lessor.

9.   The water closets and other water fixtures shall not be used for any
     purpose other than those for which they were constructed, and any damage
     resulting to them from misuse or by the defacing or injury of any part of
     the building shall be borne by the person who
<PAGE>

     shall occasion it. No person shall waste water by interfering with the
     faucets or otherwise.

10.  No person shall disturb occupants of the building by the use of any radios,
     record players, tape recorders, musical instruments, the making of unseemly
     noises or any unreasonable use.

11.  Nothing shall be thrown out of the windows of the building or down the
     stairways or other passages.

12.  Lessee and its employees, agents and invitees shall park their vehicles
     only in those parking areas designated by Lessor.  Lessee shall furnish
     Lessor with state automobile license numbers of Lessee's vehicles and its
     employees' vehicles within five days after taking possession of the leased
     premises and shall notify Lessor of any changes within five days after such
     change occurs.  Lessee shall not leave any vehicle in a state of disrepair
     (including without limitation, flat tires, out of date inspection stickers
     or license plates) on the leased premises or project.  If Lessee or its
     employees, agents or invitees park their vehicles in areas other than the
     designated parking areas or leave any vehicle in a state of disrepair,
     Lessor, after giving written notice to Lessee of such violation, shall have
     the right to remove such vehicles at Lessee's expense.

13.  Parking in a parking garage or area shall be in compliance with all parking
     rules and regulations including any sticker or other identification system
     established by Lessor.  Failure to observe the rules and regulations shall
     terminate Lessee's right to use the parking garage or area and subject the
     vehicle in violation of the parking rules and regulations to removal and
     impoundment.  No termination of parking privileges or removal of
     impoundment of a vehicle shall crate any liability on Lessor or be deemed
     to termination of parking privileges or removal of impoundment of a vehicle
     shall create any liability on Lessor or be deemed to interfere with Lessees
     right to possession of its leased premises.  Vehicles must be parked
     entirely within the stall lines and all directional signs, arrows and
     posted speed limits must be observed.  Parking is prohibited in areas not
     striped for parking, in aisles, where "No Parking" signs are posted, on
     ramps, in cross hatched areas, and in other areas as may be designated by
     Lessor.  Parking stickers or other forms of identification supplied by
     Lessor shall remain the property of Lessor and not the property of Lessee
     and are not transferable.  Every person is required to park and lock his
     vehicle.  All responsibility for damage to vehicles or persons is assumed
     by the owner of the vehicle or its driver.

14.  Movement in or out of the building of furniture or office supplies and
     equipment, or dispatch or receipt by Lessee of any merchandise or materials
     which requires use of elevators or stairways, or movement through the
     building entrances or lobby, shall be restricted to hours designated by
     Lessor.  All such movement shall be under supervision of Lessor and carried
     out in the manner agreed between Lessee and Lessor by prearrangement before
     performance.  Such prearrangement will include determination by Lessor of
     time, method, and routing of movement and limitations imposed by safety or
     other concerns which  may prohibit any article, equipment or any other item
     from being

<PAGE>

     brought into the building. Lessee assumes, and shall indemnify Lessor
     against, all risks and claims of damage to persons and properties arising
     in connection with any said movement.

15.  Lessor shall not be liable for any damages from the stoppage of elevators
     for necessary or desirable repairs of improvements or delay of any sort or
     duration in connection with the elevator service.

16.  Lessee shall not lay floor covering within the leased premises without
     written approval of the Lessor.  The use of cement or other similar
     adhesive materials not easily removed with water is expressly prohibited.

17.  Lessee agrees to cooperate and assist Lessor in the prevention of
     canvassing, soliciting and peddling within the building or project.

18.

19.  It is Lessor's desire to maintain in the building or project the highest
     standard of dignity and good taste consistent with comfort and convenience
     for Lessees.  Any action or condition not meeting this high standard should
     be reported directly to Lessor.  Your cooperation will be mutually
     beneficial and sincerely appreciated.  Lessor reserves the right to make
     such other and further reasonable rules and regulations as in its judgment
     may from time to time be necessary, for the safety, care and cleanliness of
     the leased premises and for the preservation of good order therein.