IIRC, the server service must be running, and File and Print Sharing must be enabled, but I could be mistaken
If you take the CD to the XP machine, or share it on the network, from the XP Pro machine run setupaa.cmd from the \Agents\RAWS folder
I'd also highly recommend the free upgrade to v9.1
v9.1 here
http://seer.support.veritas.com/docs/264658.htm
SP4a here
http://seer.support.veritas.com/docs/280008.htm