Windows 7: Windows 2000 Windows 7 networking problem.

I set up a w2k machine as a print server and all my XP machines print from it just fine. My 7 machine on the other hand just says my password for the user is wrong when I try to access it in network. I have tried a user account admin/pass and administrator admin/pass and do have a password set on the w2k machine (I thought passwording it may help). I can access XP machines from both w2k and 7. Any help would be great.
I may just have to upgrade it to xp, its a 466 celeron tho
Thanks.

Does 7 machine and W2K machine have same account names but different passwords?

No they have different user names and computer names.
Thanks for the reply.

Hi, I'm having the same sort of problem. I set up win2k server edition, and am able to access my win 7 computer from it, but not the other way around. It keeps asking for a username and password and I've tried everything I can think of. Nothing yet.