Yah, sigh...Now you know my pain. This gentleman had figured it out, at least in theory it sounded very solid. You simply scaled up your image to what you needed and it was pixelated, and then his program reinterpreted and rerendered the edges so you had nice, clean shorelines, lakes, rivers, mountain ranges, etc.

I checked out Old Guy's post and while its great for creating a new image, it's almost an incredible amount of work to get what I'm looking for.