how can i update to kernal 2.6.33-X-Kirkwood

HI guys

i have used manually install a tar ball to install debian into my sheevaplug.(http://www.cyrius.com/debian/kirkwood/sheevaplug/unpack.html) i do not know why i cannot use Debian installer to install (http://www.cyrius.com/debian/kirkwood/sheevaplug/install.html). it is always fails at this end when some software are installed.

right now, i am only using 2.6.30-x-kirkwood Kernel. but i found it does not include some driver i need. then i try to update the 2.6.30 kernal to 2.6.33.

i used the following way:
wget http://sheeva.with-linux.com/sheeva/README-2.6.33
chmod 777 README-2.6.33
./README-2.6.33

then it automatically downloading some file and at the end tell me to do a new boot image.

then i do the following setting:

setenv bootcmd_mmc 'mmcinit; ext2load mmc 0:1 0x01100000 /uInitrd; ext2load mmc 0:1 0x00800000 /sheeva-2.6.33-uImage'

but when i boot the sheevaplug. there are some error happen:

FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or directory

what should i do to solve this problem?

some information about my settings:

debian:~# uname -a
Linux debian 2.6.33 #2 PREEMPT Tue Mar 2 14:27:17 MST 2010 armv5tel GNU/Linux

debian:/boot# ls
config-2.6.30-2-kirkwood System.map-2.6.30-2-kirkwood
config-2.6.32-5-kirkwood System.map-2.6.32-5-kirkwood
initrd.img uImage
initrd.img-2.6.30-2-kirkwood uInitrd
initrd.img-2.6.32-5-kirkwood vmlinuz
initrd.img.old vmlinuz-2.6.30-2-kirkwood
lost+found vmlinuz-2.6.32-5-kirkwood
sheeva-2.6.33-uImage vmlinuz.old

bootcmd:
setenv bootcmd_mmc 'mmcinit; ext2load mmc 0:1 0x01100000 /uInitrd; ext2load mmc 0:1 0x00800000 /sheeva-2.6.33-uImage'

error happen:

Begin: Loading essential drivers ... FATAL: Could not load /lib/modules/2.6.33/m
odules.dep: No such file or directory
FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or directory

FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or directory

FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or directory

done.
Begin: Running /scripts/init-premount ... FATAL: Could not load /lib/modules/2.6
.33/modules.dep: No such file or directory
done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... Begin
: Loadingmodprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No suc
h file or directory

Failure: failed to load module linear.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module multipath.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid0.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid1.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid456.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid5.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid6.
modprobe: FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or
directory

Failure: failed to load module raid10.
done.
FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or directory

done.
Begin: Running /scripts/local-premount ... done.
FATAL: Could not load /lib/modules/2.6.33/modules.dep: No such file or director

thank you