Debian: Kernel upgrade help?

Hi all,

I upgraded my slug from lenny to squeeze the other day, but it's having
some issues installing the new kernel.  I'm running 2.6.26-2-ixp4xx and
it seems fine.  However, I'd love to run a newer kernel.  Apt gives the
following.  Any ideas?

Best,
Nate

XXXXX@XXXXXX:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up linux-image-2.6.32-5-ixp4xx (2.6.32-33) ...
Running depmod.
Running update-initramfs.
update-initramfs: Generating /boot/initrd.img-2.6.32-5-ixp4xx
initrd.img(/boot/initrd.img-2.6.32-5-ixp4xx
) points to /boot/initrd.img-2.6.32-5-ixp4xx
  (/boot/initrd.img-2.6.32-5-ixp4xx) -- doing nothing at
/var/lib/dpkg/info/linux
-image-2.6.32-5-ixp4xx.postinst line 347.
vmlinuz(/boot/vmlinuz-2.6.32-5-ixp4xx
) points to /boot/vmlinuz-2.6.32-5-ixp4xx
  (/boot/vmlinuz-2.6.32-5-ixp4xx) -- doing nothing at
/var/lib/dpkg/info/linux-im
age-2.6.32-5-ixp4xx.postinst line 347.
Running flash-kernel.
/dev/mtdblock3 is not a block device
User postinst hook script [flash-kernel] exited with value 1
dpkg: error processing linux-image-2.6.32-5-ixp4xx (--configure):
  subprocess installed post-installation script returned error exit
status 1
configured to not write apport reports
                                       dpkg: dependency problems prevent
configur
ation of linux-image-2.6-ixp4xx:
  linux-image-2.6-ixp4xx depends on linux-image-2.6.32-5-ixp4xx; however:
   Package linux-image-2.6.32-5-ixp4xx is not configured yet.
dpkg: error processing linux-image-2.6-ixp4xx (--configure):
  dependency problems - leaving unconfigured
configured to not write apport reports
                                       Errors were encountered while
processing:
  linux-image-2.6.32-5-ixp4xx
  linux-image-2.6-ixp4xx
E: Sub-process /usr/bin/dpkg returned an error code (1)
XXXXX@XXXXXX:~$