I've just installed KDE vie .deb and it works great! Much faster than I expected.

I checked the file sizes before the install but checksums would have been safer - unfortunately I dont see md5sum/cksum/sum in OS2008 and busybox doesn't seem to have applets.

If you want to compare your downloads with mine here are some quick and dirty check sums using perl for the mmc2 install:

cd /media/mmc2
for x in *.deb *.bz2; do cat $x | perl -e 'while(sysread(STDIN,$b,65536)>0){$s=($s<<5)^(($s> >27)&0x1f)^unpack("%32C*",$b); } printf "@ARGV[0]: sum = %08x\n",$s' $x; done

output:

kde-3.5.8-mmc2.deb: sum = d4efe249
kdesup-3.5.8.deb: sum = 0f1fd455
local-mmc2.deb: sum = bac96eaf
KDE358.tar.bz2: sum = 4ee7b895