Very sorry, but i've really not time to read 70 pages....
I can see the update, but i can not do it "Insufficient space"; but:

Nokia-N900-42-11:/var/cache/apt# df -m
Filesystem 1M-blocks Used Available Use% Mounted on
rootfs 228 183 41 82% /
ubi0:rootfs 228 183 41 82% /
tmpfs 1 0 1 8% /tmp
tmpfs 0 0 0 33% /var/run
none 10 0 10 1% /dev
tmpfs 64 0 64 0% /dev/shm
/dev/mmcblk0p2 2016 358 1555 19% /home
/dev/mmcblk0p1 27649 1946 25702 7% /home/user/MyDocs
Nokia-N900-42-11:/var/cache/apt#

i see 41 MB FreeSpace, so where is the problem?? I tried to move the file

-rw-r--r-- 1 root root 1159429 Feb 16 22:58 pkgcache.bin

to user home, but nothing change.

Please help me.

Regards.