I'm sorry to say, but the long (100k) warranty is only transferrable to immediate family members.

You can log on to Isuzu's website, follow the "owners" links and find your way to a very good warranty "decoder."

It's not so bad, being without a warranty, as Isuzu America is generally a PITA to deal with on warranty fixes.
Make the dealer throw in a (decent) aftermarket powertrain warranty.