custom background image issues with 2011 theme

Hello,

I’m fairly new to WP & I’m using it essentially as a CMS. I have downloaded TwentyEleven & am modifying it for my site.

I added the style to scale background image & a jQuery based floating menu.

[CSS code moderated – please use the pastebin for any code over 10 lines]

The css above is located in the header.php & the rest of the header is coded as follows:

[code moderated – please use the pastebin]

Originally, I was using this WP Floating Menu Plugin. However, I couldn’t change the menu layout to horizontal instead of a vertical one, so I looked around for one that would work with my design. I’m now using it.

The problem I have & it’s one that I’ve not solved, is that the div containing the background image overrides the footer & the menu.

Any & all suggestion is welcome.

Thanks in advance…