Did some digging, don't have time to 'pretty' it up. I went through the books I have, and did some googling. Here's my raw notes.
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BattleStars:
Galactica
Atlantia - Destroyed at Cimtar
Solaria - Destroyed at Cimtar
??
??
2 fleet battlecruisers destroyed (pg 32) Is this a typo and was meant to say BattleStar not Cruiser?
Pacifica - Detroyed prior to Cimtar
Pegasus - Survived destruction of 5th fleet.
Adama in novelization "thinks" 5 BattleStars in the Colonial Fleet. (pg 13)
2 fleet battlecruisers destroyed (pg 32)
Refueling stations mentioned (pg44)
Defensive system mentioned, Sagitara had most sophisticated. (pg53)
John Larocque maintains an excellent resource at
http://www.kobol.com/archives/batlstar.html
It states that the 5 Battlestars at Cimtar were: Galactica, Atlantia, Acropolis, Triton & Pacifica.
Mentioned in other episodes are Columbia, Rycon, Cerberus, Bellerophon, Olympia, Valiant, Promotheus, Argo and Poseidon
Juggling these around we get 17:
Galactica, Atlantia, Acropolis, Triton, Pacifica, Columbia, Rycon, Cerberus, Bellerophon, Olympia, Valiant, Promotheus, Argo, Poseidon, Solaria, Pacifica, Pegasus.
Larson himself states that the 12 Battlestar limit wasn't official.