Digging into Parallax and I get this error. Ufgghhh. Guess I'm gonna be looking into Type 1-to-Truetype conversion tools.
The first thing I'm seeing come up is FontLab's TransType4. A hundred bucks but it seems to work okay, though I'd be pretty happy with just some kind of little free script that I point at my fonts directory and let grind for a bit - it looks like this might require a lot of human decisions.