The CD method didn't work...

I burned Knoppix to a CD, shared out the drive on a Windows server (non-domain controller) as well as an XP workstation with read access granted to the "everyone" group. Both times I still got the error mentioned above.

I'm pretty much a Linux newbie, but I do have an OpenSuSE box acting as an anti-spam gateway. What is the command to share out a folder on a Linux box and do I need to modify the pxelinux.cfg/default file any to connect to that? (other than the IP address, obviously)\

Alternatively, is there a way to provide credentials in the pxelinux.cfg/default file to connect to a Windows share?