So when i click FLY NOW!, an error message appears. Its something about :lots of numbers and says:error at refrence of memory. SOMETHING LIKE THAT. NOT EXACT. then when i click ok im out of the game
Sounds like you installed something that you shouldn't have or you installed something legit in the wrong order or any other wrong way. Thousand possibilities, really.
Retrace your steps and try to remember whether you had this same problem prior to your most recent add-on installation.
well, i just installed the ifly 747 at the wrong file. so i moved it back(all in the FSX files) I guess thats it!