[SZS Waterboy]

Please help me(as im a noob) I cant find a proper forum topics to post this on, BUT i have installed The B-29 Silverplate mod along with UNIFIED INSTALLER DOWNLOAD and it Epicly messed up my IL-2 1946. I have re-installed it Twice and it(the game) finally works. So the question is...
How Do You PROPERLY Install A Mod???