I'm having a problem with the way the form tabs are displayed in Firefox. It seems that the background image for each tab is not being displayed, so I get white text on a white background.
I took a screen shot of your sample CRM application and posted it at the following URL:
http://www.hostland.com/aware.png
I'm thinking there must be some setting in my Firefox that's messed up. I'm using FF 2.0.0.3.