in the insert record behavior, check the session variable section.
make sure the name of the session that will store the inserted record ID is not the same session name you are using for security assist login.
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.