Windows 2000 indeed doesn't have msconfig, but someone in another thread suggested copying the XP binaries would work. Can't vouch for it because I haven't tried it, but it's something to attempt.
http://www.techsupportforum.com/micr...ml#post1845314
He didn't mention which version works either (the one with XP without SP, XP SP1, XP SP2, or XP SP3)