Wordpress header in vBulletin style

[Cutsizzle]

I wish to use a wordpress header on vBulletin and for the most part it has worked. I have a couple issues though with staying logged in + the sub navigation bar.

-Visually wise, it works alright on PC's....however it looks odd on my MAC.

On MAC in "Safari"
http://i250.photobucket.com/albums/g...2at25823PM.png

On MAC in "FireFox"
http://i250.photobucket.com/albums/g...2at25823PM.png

On PC's it "looks" perfect. As the sub navigation bar doesn't give a problem and it's lined up just fine.

Also I believe there is a cookie path problem because when you select the skin it's hard to log-in, takes multiple attempts, and then when you are logged in, you'll be on the skin and then navigate to a thread, and it'll take you to your last skin and it jumps back and forth.

Any help? I am willing to pay to get this resolved.