I'm currently building a website for an online radio station, and I'd rather not have it look bad when it finally gets on the air (understandably). The main problem I'm having is that a div I have to put a background around the main section of content and menus doesn't extend all the way down the content like in Firefox like it does in IE.
The website is http://alerionradio.net78.net/
The two divs within the area I wish to have a background for are float'd, one to the left, one to the right. I realise one way to fix this could be by using tables, but I'd rather avoid them unless absolutely necessary. The other problem is that a section at the bottom of the page (the site credits) doesn't have the background around it (which is the same class as the one around the content). I realise this is the same problem preventing it from displaying correctly.
If someone could take a look at the site in both IE and Firefox, take a look at the source code, and tell me any ideas they can think of to extend the background, I would be most grateful.