Sorry for my poor english, but I`ll try to be as clear as possible to explain my problem.
So, I made poor man`s instal this way:
knoppix home=scan tohd=/dev/hda5

Before that I`ve already setup a PH as a file in the same partition - hda5
But now, when I`m booting from the cd with this command:
knoppix home=scan fromhd=/dev/hda5
there is a mistake which says:

Can't find KNOPPIX filesystem, sorry.
Dropping you to a (very limited) shell.
Press reset button to quit.

And everything stops here

If I only use this cheatcode:
knoppix fromhd=/dev/hda5
everything is OK and knoppix boots from HD
Why it can`t recognize my persistant home directory, which is an image (about 300MB).
Hda5 is read/write, and I did PH several times
I`ve tryed almost everything I`ve red in this forum but nothing.
Just to say:
file system - hda5 - Fat32
Instaled system on hda1 - WinXP
Please help me do this "Poor man`s install"
I don`t have enough free space on my HD to make full HD install, but at the same time I want to become familiar with Knoppix without using my cdrom all the time (only when I`m booting). I`m linux beginer
Once again - HELP!!!