Need help with photo editing please.?

This is really easy, you just layer the images on top of each other. However, the Canon T2i only has a 3.7 fps (frames per second) burst rate. Anyways, the best editing program would of course be Photoshop CS5, you can get a 30 day free trial to test it out at the Adobe website. If you're looking for a more basic program than you should get Photoshop Elements (the current version is Elements 9), but if you want a free program, get Gimp 2