Yep, those links are great!
Unfortunately, the scans are far too low-res to be usable. If you still have the box and can scan it again, try flattening it out as best as you can (unfold the box, place a book and lean on top of it while scanning) and scan at 600 DPI. If you can get workable scans, I'd be more than happy to make a cover for you!

Good luck!