The stuff I had 2 years ago was a year or 2 old and it was still good. I'm pretty sure the stuff you have is probably good. I know that probably doesn't make you feel better, but FedEx hasn't changed the process in a long time. I think the only thing they've changed lately is computer testing instead of the old fashioned way.
However, there are alot of guys that read these boards that have gone recently, so I'm sure you'll get some recent info.
Good luck.