kernel updated but no linux-restricted-modules-2.6.15-27

A friend of mine on Dapper just updated his kernel to version 2.6.15-27 and rebooted only to get a black screen because the nvidia kernel module isn't loading. Now I'm trying to download linux-restricted-modules-2.6.15-27 but apt can't find them - i've updated many many times.

I'm going to attach the sources.list file and the output of apt-cache search linux-restricted modules. It finds the previous versions are found (25 and 26), but not version 27. Really stumped by this one...

************** sources.list ********************

deb http://archive.ubuntu.com/ubuntu/ dapper main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ dapper main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu/ dapper-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ dapper-updates main restricted

## Uncomment the following two lines to add software from the 'universe'
## repository.
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
# deb http://ca.archive.ubuntu.com/ubuntu/ dapper universe
# deb-src http://ca.archive.ubuntu.com/ubuntu/ dapper universe

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
# deb-src http://ca.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu dapper-security main restricted
deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted
# deb http://security.ubuntu.com/ubuntu dapper-security universe
# deb-src http://security.ubuntu.com/ubuntu dapper-security universe

*************** end sources.list *************

saads@zafer-desktop:/etc/apt$ apt-cache search linux-restricted-modules
linux-restricted-modules-2.6.15-23-386 - Non-free Linux 2.6.15 modules on 386
linux-restricted-modules-2.6.15-23-686 - Non-free Linux 2.6.15 modules on PPro/Celeron/PII/PIII/PIV
linux-restricted-modules-2.6.15-23-k7 - Non-free Linux 2.6.15 modules on AMD K7
avm-fritz-kernel-source - AVM Fritz! binary kernel module source
fglrx-kernel-source - ATI binary kernel module source
nvidia-kernel-source - NVIDIA binary kernel module source
nvidia-legacy-kernel-source - NVIDIA binary 'legacy' kernel module source
linux-restricted-modules-2.6.15-25-386 - Non-free Linux 2.6.15 modules on 386
linux-restricted-modules-2.6.15-25-686 - Non-free Linux 2.6.15 modules on PPro/Celeron/PII/PIII/PIV
linux-restricted-modules-2.6.15-25-k7 - Non-free Linux 2.6.15 modules on AMD K7
linux-restricted-modules-2.6.15-26-386 - Non-free Linux 2.6.15 modules on 386
linux-restricted-modules-2.6.15-26-686 - Non-free Linux 2.6.15 modules on PPro/Celeron/PII/PIII/PIV
linux-restricted-modules-2.6.15-26-k7 - Non-free Linux 2.6.15 modules on AMD K7
linux-restricted-modules-386 - Restricted Linux modules on 386.
linux-restricted-modules-686 - Restricted Linux modules on PPro/Celeron/PII/PIII/PIV.
linux-restricted-modules-common - Non-free Linux 2.6.15 modules helper script
linux-restricted-modules-k7 - Restricted Linux modules on AMD K7.