I assume that your database has tables in it, and those tables have columns? if the database does not have any tables in it, there will be nothing to display in the list of available tables when you select the <New From Blank> option. The other options show the columns because they are presets that will create the table for you.
if you do have tables that are not displaying in the list, start by deleting the Dreamweaver Cache file from the users configuration folder:
then in your OS file browser, go to the root of your Dreamweaver site and delete the _mmServerScripts folder.