Stitch programs are generally used to stitich together a series of photographs into one photograph. I recommend, Windows Live Photo Gallery, as the best photo stiticher for you. The feature "Panorama Stitcher" in the make menu makes it different.
You have to simply select the photos from the thumbnails viewer, and the program does the rest. Use the Fix menu for Cropping and adjustments . The results are even better than if done by Adobe Photoshop.