It sounds like you are doing it right. Maybe you need to change focus on the last field you updated because the value isn't being held properly. I can't see a flaw in your logic from what I have read it seems you are probably doing the right thing.
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.