cartfather229, please reinstall your game from the scratch. You've messed up something, don't ask me what exactly.
If the intro plays and you're able to skip it, this means that the game basically runs and as much as the selector or any other part of the launcher code is concerned, all has been done correctly already.
A "hanging" game with non moving cursor occurs when something keeps the game from loading the main menu correctly. This happens for instance when selecting some modded game version without having the regarding mod folders in place (e.g. you are running Modact 3 but selected Classic Mod version).
In that case Windows 7 users can simply press Alt+F4 when the game window is in front, this should bring up the "close application" window, where you can press tab+return, selecting to cancel searching for some solution to this issue. If this doesn't help you can still press Ctrl+Alt+Del to get into the Task Manager, but the mouse might be blocked there. In that case you can just use the Tab key and the arrow keys to make your selections.
Anyway, there's no common cause for the game to get blocked completely, and the most promising solution instead of wasting days to search for the reason (which often times lays back months in the past), you should really consider reinstalling the game from the scratch into some proper location (in your case: Not the program files folder).
By the way... when you said you installed into C: folder, I hope you didn't mean that literally, i.e. your il2fb.exe is not in the root folder of drive C: hopefully.
Just an educated guess, but since you ran your IL-2 from the program files folder already before and we all know that it can't save it's files and settings successfully there, all your settings are likely inconsistent already. Another good reason to start from the scratch.
Best regards - Mike