Greetings. Congrats, you're my very first post on this site.
There are two versions of a Colonial Warstar that I'm aware of.
The first (Been around since '84), and my favorite is the Helios Class. You can find it here:
http://www.shipschematics.net/bsg/im...tar_helios.jpg
The second is the Carlson Class. Named after the artist (Mike Carlson), and can be found here:
http://www.shipschematics.net/bsg/im...ar_carlson.jpg
The Pheonix was most likely the Helios, as it's a 24 year old design.