But I have a problem: I can't properly connect to our server, or print to the network printer. I can use the server via VNC just fine, but when I try to browse the D drive of the server from my local machine, it doesn't accept the password.
blah, blah, blah
I figured it out. SP2 has a Windows interface for setting up network logins, instead of a little text file that specified your network identities. Once I discovered this new feature, I had to remember what my user and domain names were for this server, and now it works. Huzzah!