We've switched to svn and no longer use cvs.
Have a look at
for instructions on getting the code from SVN. Also, I don't have access to a SLES machine, but feel free to update
as needed when you find other out-of-date instructions.
BTW, for live help, you can find us on irc.freenode.net in the #webwork channel. John Travis is someone there who just successfully installed the new version of webwork on SUSE.
Hope this helps,