Make CSS Footer Stay at the Bottom of the Page

I’m currently working on a small website in HTML and CSS for web design class in school. Though, I had major problems with positioning the footer at the bottom, get the background image of the layout to work right and shit. It didn’t become easier with my layout background image being an semitransparent .png-file. So messy…

However, I stumbled over two good website that helped me to get in the right direction with getting the footer to stay at the bottom. They didn’t completely solve my problems, but yeah, they helped much. Here are links to them:

• http://www.cssstickyfooter.com/
• http://ryanfait.com/sticky-footer/

EDIT: You can check out the theme here and download it.