It's inevitable for me now...
I've just tried all 3 versions of my video drivers, as well as full scans with Registry Mechanic, Malwarebytes Anti-Malware and Ad-Aware 2008, just in case, and it still wont open. I'm going to try and download a newer version of OpenGL and if that doesnt work I'm going to wipe the drive and start from scratch.
P.S. I had it running fine before on XP SP2 and when i put on SP3 it ran fine also. While i was playing the game crashed twice when i derailed a train and when i went back into the maps with Surveyor, i noticed certain trains werent where they were supposed to be, and two of them had the Red Exclaimation Mark above them. And that was in Surveyor. I'm not sure if that is related or not.