Hi,
I had the same probs at first with my SL5600 using Poodle. I now use a 256MB SD card, ext2 formatted and /opt and /root are copied to it, the I created some symlinks from / to /mnt/card/root and /mnt/card/opt ...
Gave me 16 MB free on the ram and, I can now install to root as much as the 256MB SD goes
Regards,
Alex