the root of the problem was that you did not name the editor instance correctly.
when you replace a text box from DataAssist, you make note of the text box name, then name the HTML Editor instance wit the same 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.