I recently uploaded one of my maps but I can't get it to show the map minimap--does that only work if I upload an unprotected version so the program can automatically make a thumbnail or is there some way I can upload one myself? It only seemed like you could upload one link (the file) and that there was no space for uploading the map.

Map was simply too big for automatic image generation... I'll fix that soon I hope.
You can edit your maps with the edit tab. Where you put the tags and such in, below it is an area for images.
http://www.staredit.net/?file=120&load=edit

Ah ok, I see it now. Before I guess I didn't notice the page went on and failed to scroll down far enough.