Super won't allow direct links to the download. It is at the bottom of the third page by the way.

But you don't really need it since you have TMPGenc. The reason you have only a limited number of sizes is that your are encoding mpeg2 to PAL dvd specifications. Those are the only sizes allowed in dvd video....though NTSC sizes are slightly different.

Since you are importing those into TMPGenc Author to make dvds, I suggest sticking to those resolutions, else you'll wind up encoding the video twice, losing both quality and a lot of time.