Hi
I wrote the uploading page yesterday, and after much hair pulling and a session that ended somewhere in the region of 4am it will now accept any .jpg picture up to 200kb in size and will automatically resize and crop the image to the dimensions used on the licence picture itself, which are as mentioned above 180x240.
I think the licence looks a lot better if you apply a sepia filter to your images, but I did not want to make this automatic because I didnt want to modify other peoples work and more importantly - it looks really hard to code a sepia filter into a web page!
The staples and styled surround are both added automatically.
The upload system might also handle gif images, I put support in but didnt test it. If gif's dont work i'm not bothered, it's designed for you to put a portrait photo in and they would typically be jpg.