No rosters for Season Ticket Football currently.
I do know that Action PC football has an identical game and they offer rosters. I have tried contacting the creator of Action PC football rosters to make sure that they are compatible with STF2003. As of today, I have not received a reply.
SPeeDy
Creator of sports sims rosters.
Available for download at my website:
http://www.geocities.com/speedy_sports_sims/index.htm