You would have to add a recordset to the top of the page and check to see if there was a valid result and redirect. I could help with that if you send me your FTP information and a sample URL to test with.
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.