I've not understood KK's reason for using Reiser
for that variant of Knoppix.
KKs answer:
This would be the "install knoppix on harddisk" option, instead of "flash-knoppix".

It creates swap and at least one reiserfs partition.

To answer the next upcoming question already ("why reiserfs?"): I use this because it automatically repairs itself during mount in case of a previous crash, which may be less confusing and time-consuming for beginners than a file system check in ext3.
http://lists.debian.org/debian-knopp.../msg00007.html