Updated CSS not functioning properly

[gameoverbeyond]

Ok I have a problem I cannot figure out. I recently upgraded my site to 1.3.8 and created a back-up test site on my PC using Wamp. I tested the upgrade and everything was good with the exception of some display quicks. I fixed these on my test site using information I found here on the forums and tested the local site using firefox and IE. I then upgraded my site and everything went great. I uploaded the changed CSS file to my CUSTOM/css folder and now its not displaying correctly in FF or IE??? here's a link to my site:
http://www.gameoverbeyond.com

What I want it to look like is the screenshot attached.
I went back and downloaded the CSS file from the online server and compared it to the one on my test server using Winmerge and they are exactly the same. Is there something I'm missing here??
instead of my header_bar.jpg showing up, I just get these 2 black lines.