Hi All, 
I am a member of the FSCaptain development team. After a recent request by one of our users we have found a way to submit a Pirep to his phpVMS-based VA using FSCaptain. I have informed the phpVMS developer about this, but until there is an "official" solution you can learn more about this by submitting a request on the FSCaptain support forum at http://fscaptain.proboards.com/ 
Best regards, 
Peter