vB4 Fixed width CMS but with fluid forum
 

For some time I've used a 960px Wordpress portal however my forum was always fluid and set to 90%.

After experimenting with the VB CMS for some time now and figuring out how it all hangs together, I'm ready to replace my Wordpress portal with the VB CMS.

What I really want however is to retain the current look, but I haven't been able to find how to have the CMS and forum set to use different widths.

Is this possible, and if so could somebody point me in the right direction?

Many thanks,
Mike :)