Check out my website, as all images are scanned and stitched prints - 7x17 and 8x10. I use photoshop elements 5, as it has the stitching capability. I use an inexpensive 2450 epson. It works on 8x10 and 7x17, so it should be fine for 8x20. I scan what I can on the left, then the rigth side of print, save both and then stitch in photoshop. Works great. A lot easier than scanning an ULF negative btw. Also, I rarely have to tweak in photoshop to get the contrast/brightness back to the original image either. Basically, what you see is what you get. Any further questions, give me a holler. It's really easy...