Styling within different browsers

[excessive34]

well, I style in firefox and everything turns out beautiful... when I take a look in internet explorer 9... theres a few things off.

does the css sheet "vbulletin-ie.css" specify whats used if the browser being used is internet explorer?

If not.. what ways can I define my tags so that it is specific to a certain browser?

[Zachery]

What exactly is wrong?

[excessive34]

Unfortunately I dont have IE9 on the computer I do my work from so I can't get you a screenshot showing the exact issue.

In Firefox, my "Logo Image" lines up on the left side, just above the navbar. Looks perfect.
In IE9, that same logo image moves over to the CENTER of the screen

Edit: if you can take a look for yourself, the link is in my signature and its the "Get Down" theme