DotNetNuke 4 Rendering Issues in IE

So unfortunately I am in a position where I am forced to use DNN4. I have no control over the actual installation or any of the overall admin features. All I can do is design, write the code and implement the new template.

Now that I have it mostly finished I have realized in Chrome and Firefox, it looks and works like I intend it to. In IE everything breaks. When I force the browser (via it’s f12 developer toolbar) to view the site into Standards Mode (ie7, 8, & 9) it looks and acts as I expect. In Quirks mode (which it defaults to) I am SOL. It breaks everything.

What can I do to fix this? Any idea?

To make it worse… I can’t change Doctype.