The Q site is usually very good (which is surprising since they often have everyone's position wrong). If a player magically appears, he almost certainly got called up, and if he magically disappears, he probably got demoted. In the Q, it isn't common for teams to use extra players (outside of moving guys up and down during trade periods and after NHL guys come back).
For Saint John, our latest news can be found at:
http://www.twitter.com/seadogshockey
For today's game, I'd expect a lineup something like:
Petersen - Hoffman - Galiev
Anthony - Kirkpatrick - Jurco
MacAuley - Gauthier - Thomas
Huberdeau - Phillips -Pard
(though all our wingers can play both sides)
Beaulieu - Sauve
Durepos - Despres
Bourret - Gagne
St-Laurent
Cousineau (I think he'll start tomorrow against Gatineau)