the slideshow galleries will look for an outerWrapper div and automatically adjust it's width to 784px.
to work around the problem, you can rename the outerWrapper div in your page, and change the CSS class to use the new name.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.