I haven't had any luck with that either, but then again even when I post a pic in a forum reply I get thumbnails when every one else has big high res. shots.
I like the other one (i know which one that is hehe)I believe they can't be any larger than 800x600. I'm still messin' around with this one to see how I like it, might still go with the other one though if this doesn't work to my liking.
Define viewing area...If you could change how wide the viewing area is it might help too. I understand the need for margins and possible revenue though too.