Have it started again this month?
Try Jumjim's pages:
http://www.neopets.com/~Jumjim8975
I liked it when I started in August as it has links to all guide sites.
For an overview, try Evil PT God
http://www.neopets.com/~Evil_PTGod
There should also be roweslab's guide somewhere - I heard in one board people recommending it, but last month I was so busy to break 1 Million in revenues, I did not do get chance to look at it.
Regards
Sid