You will want to get familiar with configuring SAMBA. I did a forum search on "samba" and the first link I came up with was:

http://www.knoppix.net/forum/viewtopic.php?t=251#825

This seems to address your question, but there are TONS of other interesting posts.

Helps to know WHAT you need to look for, doesn't it (-;

Hope this helps,

~paul