Site works fine in all browsers, except IE7 and lower, site has no style at all

[notanotherblondechick]

The website I'm working on is currently working fully on latest chrome which is what I'm using, but when I use tools like http://netrenderer.com/index.phpAny help will be MUCH appreciated.
Please try to render the page using IE NetRender and see what I'm talking about.P.S; I did try to Google/search for a solution - but in none the situation was as bad as mine.