It's possible it didn't have it during the disk build. Does this mean I'm possibly screwed and should start all over? Or is there something that can be done at this point.

This is the sequence of what I did successfully in the beginning:

1. Car2 Builder V3
2. Builder Bigdisk V6 - (Hijack installed???)
3. Car2 2.01 w/hijack preinstalled

I went through many combinations of different images to get the Empeg up and running with the full 320GB. Originally I started with a the bigdisk v6 and the player only ended up being able to see 128GB. Only when I did the sequence shown above did it work and show the full amount.

I'm assuming Bigdisk V6 has hijack integrated since Mark released it.