Thanks for your help. What I ended up doing was rebuilding the terrain with a big flat part in the middle and then repositioning all the buildings. Thanks for your help.

If you want to see the finished deal go here:
http://www.freewebs.com/therpgproject/apps/photos/photo.jsp?photoID=3833533

It's not much, but I'm just creating something to start designing a RPG with. I have another question now about using terrain objects but I think I'll just create another thread for that. Thanks again for your help.

Actually, no, the Armor Class Modifier Tables were the most ignored, but of them we need not speak.