Here’s an often forgotten feature that any SharePoint Designer person should be aware of. It’s the ability to edit and customize the default form fields for any list. This is made possible by using SharePoint Designer to navigate and open the form page that you want to edit. When you open the page you’ll see something like this:
You’ve probably tried right clicking around, trying to convert the web part to a dataview web part, and then you threw up your hands and said this is impossible!
But wait! Check this out… First select the ListFormWebPart and *EDIT: DO NOT hit the delete key. Instead hide the webpart. If you delete it, this will happen: http://support.microsoft.com/kb/935504
Ta da! Now you can go about your daily business of form customizations.