foxynchick,
You'll be travelling on one of FCA's Boeing 767-300ER's since thats the only aircraft they use for long haul flights. These are excellent as an aircraft, not quite as quiet as the Airbus equivelent (or as British!), but still a very nice airframe. The star Class interiors are simply the best in the skies as far as charter airlines go. Seating is allocated on a first come, first served basis so get to check-in 2 hours before your departure time and you should get seats together. Seating is arranged 2-3-2 so you'll either be sperated by an isle, or behind each each.
Unless its a recent introduction, FCA don't have extras such as air therapists aboard thier flights (and I doubt they ever will). This is the realm of schedule opperators such as Virgin. I'm nut sure what the pampering pack contains exactly, I've only been in star class and I'm sure you get a few extra bits and pieces in premier. I should imagine it will be the usual things, toothepast and brush, each plugs, blindfold, socks etc. It may have the headphones in, but you get to use noise cancelling ones in premier (can't keep them though!).
Have a safe journey,
Darren