Which Mod for a Steam install?

[Rikeshar]

Hello. I just bought 1946 on Steam and I'm a little confused on which mod I should/would want to install. The current steam version is 4.12.1m. I know that the UP4/DBW combo requires 4.10.1m. Is there a way to downgrade my install to a previous version? If so, do I even want to, or would Modact be good for me, since it's made to work with this version?

Really, I'm not sure where to start at all in the modding. I want to update the graphics a bit, and of course extra planes/missions are a plus. I'm likely only going to play single player.

Thanks in advance for the help!

[DD_crash]

HSFX 7 uses 4.12.1 For info look here http://www.242sqn.com/phpBB2/index.php