How To Skin Windows 2000?

Is it possible to skin the Windows 2000 OS if Yes, how?

Thank you!

Do you mean theme?

Yup, I should have said theme.
I have found how to make everyrthing but the top bar of windows look like mac.
I also want to find some way to change the taskbar.

i not sure if this will work for 2k but look at this http://www.tweakxp.com/article36677.aspx