Our application has it's own style based on different tabbed panes - it doesn't follow your System/View model. There's only one main System with several Views (vertical and horizontal).
For now I can send you two pictures. First one shows the space made by spacer.gif (with defined style inside html tag)
Second one shows page with all spacer gifs with display:none (or no style in html tag at all)
Hope that'll help
For best results, use the Firefox browser..