CSS Sculptor is used to create New CSS Layouts. It cannot be used to edit an existing layout.
I'm not sure I follow what you mean by activate a submit button. What are you trying to accomplish with the form?
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.