I need someone who knows lots about computers and gaming?

From the information you've given, your computer will definitely be able to handle this game. The only real things you should worry about is the RAM and the Processor speed. The game requires only 256 MB of RAM, and 1.4 GHz to run. You have 1022 MB of RAM (about 8 times more than what requires), and a 3.2 GHz processor (about twice as much as you need). Believe me, you're fine.