For those of you interested I figured out what was going on. It looks like my workflow software, lightzone, uses JFIF to tag the JPEG when converting from PEF. While pretty much every other program and hosting site can read either it seems that PPG works only with EXIF. So to fix this you have two options:
1. Upload picture and a "scanned" image and fill in the missing info in the Notes section
2. Use exiftool to covert the tags to EXIF using the following command string:
- exiftool -all= -tagsFromFile FROM_FILE.jpg -exif:all TO_FILE.jpg
Either one should work. I think option 2 is the easiest way of going about this as you can batch convert if you have several images.