Hey cowboy, welcome back.
Versions 2.xxx are no longer updated, but fear not. Owners of the now "old" express or gold receive a free upgrade to gold v 3.xxx, whereas owners of platinum receive a free upgrade to the new platinum. While I loved the old platinum, you would have to pry the new platinum from my cold, dead, clammy hands...it's an outstanding program.
You'll have to use your original email address used for your original purchase.
Fengtao will send you a new regkey via this link:
Download the latest beta right here.
I think Fengtao was offering a discount to move from old express/gold to the new platinum...not sure about this though.