Scripting Snapfish upload with php

I've been trying (and trying and trying...) to create a php script to upload photos to Snapfish. Has anyone had success with this?

I'm using cURL within PHP and targeting the html-style upload page for snapfish. I've done this type of thing many times, but am struggling in this case. I'll be happy to post my code thus far if anyone wants to play with this with me.

I thought I'd start with this small message, first, to see if anyone has tried to tackle this before.