Hi mdcoffman and welcome to the Knoppix forums.

This is a curious one. You are not going to believe me but never mind.

The cloop.ko and aufs.ko are built into the kernel so while you won't find them they are there.

I've had Knoppix 6.4.4. PXE boot work (to my astonishment). It worked first time and all I did was start the Knoppix terminal server. I did not have to copy modules from anywhere to anywhere else.

Linux kernel modules are complied to run with a particular kernel. Modules from a 'previous' version of Knoppix just will not load into a different 'newer' version. It's a sanity thing.

Somewhere I think you have become confused.

See, I told you you wouldn't believe me.