Getting different style between explorer and firefox

[rescue]

 :-[How can i fix the problem that I get the right look and style in Mozilla Firefox, but in Internet Explorer it looks total differnet. Most of the graphics are missing and the css style sheet doese not seem to be loading propably. I've re-loaded everything just in case but still get the same problem
Here is the link to my photo gallery that has the problem
http://www.zantebay.com/Coppermine%20Photo%20Gallery/index.php
Can anybody help as I am baffeled by this?
Panda

[Nibbler]

Probably because all your changes are invalid HTML. Fix that first

http://validator.w3.org/check?uri=http%3A%2F%2Fwww.zantebay.com%2FCoppermine%2520Photo%2520Gallery%2Findex.php&charset=(detect+automatically)&doctype=Inline&group=0

Also, you should avoid using spaces in the URL.

[Joachim Müller]

Use © instead of the Copyright symbol. As Nibbler said: your edits are not standards-compliant (none of them is - in fact your edits are a mess in terms of validity), so it's not surprising at all that your page doesn't validate.
The browsers are left with invalid HTML and they try to interpret it as good as they can, but since your instructions are invalid it's more or less up to the browsers how to display your pages. You're forcing IE into quirks mode, that's for sure.