PG Theme customisation

I don't know if this is a theme or a Gallery 2 issue. I'm trying to embed a gallery into Drupal using a fixed width Drupal theme. I have been succesful up to the point but when my user goes to checkout using Gallery 2 checkout the Gallery 2 checkout screen is too big for the available real-estate. I'm currently using PGtheme and it place s a "back to gallery" side bar block on the left of the cshopping cart block. Is there any way of removing this?

I was using the Xtreme theme but had issues with real estate size when the Photo's were displayed. Didn't matter how small the Photo was Xtreme pushed out beyond the Drupal block width. Checkout on the Xtreme theme was a perfect fit though...!

My preferance would have been to have a totally integrated solution and used Drupals Ubercart cart but I'm not aware of any means to integrate that with Gallery2.

I'm also getting a frame around the thumbnail in the block which would appear to be a remnant from an old theme I tried ot. I'm not using image frames around the current theme. I've reset template cache, etc but don't seem to be able to get rid of it.