seaotter

hello. came across this guide by accident, and now my curiosity is perked up. i do have some questions tho: 1. i have a XP install that some with SP2 inside. will it work? 2. i also have a stand alone XP install disk, but i also have the SP2 disk from microsoft. how do i slipstream that? 3. how many programs are the limit per unattend? thanks for answering the n00b