Re: Sidebar Trouble
I presume you have used the template pack to prepare BP pages under your chosen theme, Template pack will require that certain elements are added from the original theme markup to the new bp pages, looking at the layout shows that the original theme uses a nested element under #container called #left-div which is floated right and given a fixed width allowing room for the left sidebar. it looks as though this is missing from your bp pages and will need to be added in manually.
It may help you to open and reference one of the original theme files like ‘index’ , ‘page’, or ‘single’ and compare it’s main markup structure to the bp files and ensure that they match.
