create your form form builder with the necessary form elements.
after the form is created using Form Builder, add the Universal Email behavior be going to WebAssist -> Create Email Message.
in the Universal Email wizard, dont select the option to Create a File for the email message, instead, click the DW Edit icon, this will open up a page in design view for you to design the look of the email message using Dreamweaaver.
to add the dynamic form data, use the bindings panel and add the form bindings where necessary.