As the lead developer of FMStudio Pro, I would like to address the confusion:
- FMStudio Pro is an advanced extension that introduces a new PHP Server Model, therefore it will not cooperate well with many other PHP extensions. This had to be done as it is not an SQL based database connection.
- Form Toolkit will work just fine next to FMStudio, just not inside of FMStudio pages
- Start with a plain PHP page, use Form Toolkit to do what you need
- Then by hand integrate the generate Form Toolkit code into your FMStudio Pro pages
The code will not be editable in Dreamweaver using the Form Toolkit tools, but it should work just fine - after all both extensions produce proper code that works in PHP. The integration of the code by hand into FMStudio pages should be easy enough to do.