CSS help - side appears in wrong area on short pages and chrome

I have a site that uses css. I have been hacking it a bit to add some things to the side colums (Twitter, facebook and such). Now on a short page and in Chrome, part of the side panel appears in the main section not in the side column. I am not 100% sure it is due to my hacking but I suppose so. The site is [login to view URL] See the attached image for the detail. If you will also look over the rest of the CSS and make sure it is OK - especially the side bar - that is good. With the bid please include the following: - Estimated amount of time it will take - Amount of time from bid acceptance it can be returned in - How many hours you could devote to another project in CSS I have this this week. Thanks! -tad.