I've just engaged the wp sidebar widget in both sites, and have found it seems to resize the sidebar to:
1) make the side bar appear below the page on overlander.tv
2) make the page appear below the sidebar on dufftv.com.au
I have tried making adjustments to the style.css (resizing page and sidebar) but this hasnt worked
When I remove the shopping cart and categories widgets, it works fine, so it must be something to do with the size of these widgets. But Im a little unsure how to solve the problem.