Yea, there were no version conflicts with msconfig and Win2k. Microsoft made a decision not to include it. You can copy the XP "version" to a 2000 box and it will work just the same.
Also, in addition to looking in the registry, you can install this program from the link below and it will perform a check upon boot. The registry or msconfig will only show you what applications/services are starting after the initial GUI loads. BootVis will check from power up to power down.
(It says that it is only compatable for XP but I have it on a 2000 Pro client and it works fine. There is another version that you may have to have. I think this is it but if this doesn't work, let me know and I'll post another link. Pretty sure that this is it though.