It is probably a matter of adjusting the z-index in the CSS.... if you give me a url where I can reproduce the issue I can play with the CSS to tell you what to change and where.
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.