problems with the home folder when remastering

I want to make a knoppix cd which should have a customized home folder (every file in this home folder should stay, also things on the Desktop and all the (dot-)files and (dot-)directories etc.) .
With a persistent knoppix image (knoppix.img) feature, I would like to be able to change (delete, add, remove) files from that home dir.

-->so I simply want to make a knoppix live cd with a default (remastered) home dir, which can be changed with the knoppix.img-feature.

I don't know how exactly, but knoppix deletes files from the home folder when booting. I allready looked at this forum (probably I have to change the file 45xsession) but I didn't find a clear answer.

Thanks in advance!

Gr HEndrik