you can't really be "behind" b/c there is no end goal for the game. if you have a personal goal, then yes, you will obviously be behind where you would have been if you had still been playing. there have been some changes to the game including but not limited to jedi revamp, jtl, and loot revamp. for details on those changes, check the jtl faq, the jedi faq, and look for a thread with "loot" in the title from the past couple of weeks. and welcome back.