Joomla 3.x Module or Menu Suffix needed

I have a Client with a Joomla 3.x site in development. The original developer used 2 lightbox modules on the site, and they are conflicting with each other. I need a suffix (preferably a module class suffix) created to fix the position of the lightbox module on the page. I have done this hundreds of times, but never not had it work. In this case, my efforts are just not working. I need this done quickly. You will not need access to anything, you should be able to just tell me what suffix class to use and what css to add to the css file. To see the conflict please view this page - [login to view URL] Click on one of the Project Gallery images. You will; see that the lightbox opens on the right side of the page. I need it centered. The suffix should simply center the module, nothing else. Thanks, happy bidding!