I didn't see the dialog was asking for the "Free Tools" serial number. I copied and pasted that specific number and that problem is solved.
When I go to insert a new form into a blank web page the Form Builder dialog starts to appear for just a moment and then goes away - no error. CSS Menu Writer comes up ok. When I installed the new extensions, during installation the installer indicated I had a newer version already in place of several files. I responded to not update what was installed. Any ideas on how to get Form Builder to appear?