Forum vBulletin 4.0.4 and Joomla 1.5.15 integration
 

We have a Joomla powered website here: http://www.electrotank.com/

I have figured out how to migrate our old dotNetBB forums to a shiny vBulletin forum. I haven't done the update to 4.0.4 yet but will do that before we do the final import and shut down the old forum. I have vb 4.0.3 and a test import running here: http://www.electrotank.com/forums/

I know that there are ways to integrate vBulletin and Joomla so that only one login is needed. My boss thinks that there's a bridge that can let vBulletin use the same look and feel as the rest of the site as well. so....

What's the best add-on to get to integrate vBulletin 4.0.4 and Joomla 1.5? Is there one that means the forum will be able to have the same header menu as the rest of the site?

Any advice would be appreciated!