Member Profile Fixed Width Problem

[H2O Snake]

I have been trying to fix this for a couple hours now and I can't figure out what the problem is. Basically I am designing a style that is fixed width for a vB 3.7 with a custom CMS system and bridge.

Please see the following image:
http://www.pmsclan.com/problem.jpg

I have not modified the templates for memberinfo pages yet so the template showed in the picture is 3.7 default except for the change of images and the custom header/footer and all the other pages I have done but shouldn't have anything to do with memberinfo. I have been going through and customizing every page but this part is what is giving me trouble. I have no idea why the content container/content is spreading to 100% with a margin right in the css.

The memberinfo_css template has the values that should still support the layout.

#content_container {
width:100%;
float:$stylevar[left];
margin-$stylevar[right]:-256px;
}
#content {
margin-$stylevar[right]:256px;
}
#sidebar_container {
width:250px;
float:$stylevar[right];
}

Theres a 256 margin declared but I don't understand why its not working.

Also how my style is fixed width. Main table width is set to 981px. To draw the rest of the site what I do is in the header/footer template I call the header/footer of our CMS systems style to draw the header/footer and borders. Basically it puts the whole forums into a div that is centered and width 981px.

I have tried tweaking multiple values but still cannot figure out the problem. If any of you template gods have any clue the problem that would be greatly appreciated.

Thank You Very Much :)