For your pathing issue make sure you have the maps files in the correct place.
For the database schema take a look in the wiki. I believe it is called 0.7.0schema or something similiar.
On my Athlon 2400 with 1 gig of ram I didn't have any problems loading up 30 zones. With a bare, brand new install of 2k3 Server Enterprise. ( Although if your running XP I'm not sure, 2k3 Server actually uses a decent amount less ram than XP )
Good luck
http://www.eqemulator.net/wiki/wikka...DatabaseSchema
Just realized I had the DB Schema bookmarked in Firefox, there you go.