XP Computer Login to 2000 Server

I have a two fold question.

1. I have a 2000 Server network with 25 Windows 98 workstations and three new XP Pro Stations. I am having problems connecting the XP stations to the domain. I keep getting errors about the computer name and cannot finish the setup. I have added the computer name and given it a known password. I did see a tool called netdom.exe, is this the key to making this work?

2. The stations are staff and students in a small charter school. I have a lab with 15 workstations and any student can log into any windows 98 station and their login script runs. Once I am able to join the XP stations to the domain, will it act the same way an run their individual login scripts? Each user has a independant login script based on their permissions and necessary mappings.

Thanks alot for your help!

Sally