viewing your page in fire fox, the Fire Bug error console shows error messages in the jsmoothmenu js files. see attached scrre shot.
seems to be a probelm in the menu script.
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.