It isn't the third season, I think people are just thinking it is because of the amount of time between the two halves of the season.
Here is a site with a list of Season 2 episodes
http://www.gateworld.net/galactica/s2/index.shtml
The thing on Scifi is a pre order of Season 2 you wouldn't get it until the episodes have premired at least somewhere be it Europe or the US.