I'm trying to do the same thing, but I'm pretty sure you can't do it directly. You might have to use PHP and mySQL ... pass the data from your FileMaker database into a mySQL database.
At least, this is what I'm trying to do ...
I've got PHP and mySQL running on my server, though I'm not sure where to go from here.
If anyone knows how to pass info from FileMaker to mySQL or if you can use a FileMaker database directly, please let us know.
Cheers,
hc