XML gallery / thumbs problem sizing and spacing display areas

Hi, I’m using the (notorious) xml gallery with thumbnails, and want to modify it so that I can have the thumbnails on the far right, scrolling from top to bottom, and the main pictures displaying in the left. Is this possible? All I seem to be able to make is a mess…

Just by moving the boxes around on screen, the thumbnails seem to get pushed right off the page, if I attempt to move the hit_left and hit_right sections.

I’d really appreciate some help here!

Thanks…