Access to the form builder generated name for the form's data?

Hi,

I need a way to find the generated name for a form builder form's data (like 556b186d7ab0590374de2cb7deb16f87).

Our current setup is a form builder form with a submit button that passes the forms controls values to a form runner XPL that runs some transforms on the data then sends to a web service. Inside that resulting data that is sent to the service I need to put a link to the PDf view of the form (http://[servername]/[application]/[form_type]/pdf/[form_data]). The problem is finding the value for the [form_data] part which is the name generated by form builder. I have been trying the following approches but have not had any success.

1) Is there a way to pass this information from within the form to the HTTP service that transforms and sends the data?

2) Can you use an xmldb-query on the [Application]/[Form]/data collection to retrieve the collection names stored in there (when I try it just returns the form data within but not the file names)?

Any help on resolving the above problems or suggestions on a better way to accomplish this would be greatly appreciated.

Thanks,
Jim