Bought PT3, and had it installed on my desktop like a year ago.

Desktop gets wiped out, all apps lost.

Can i getz the PT3 back, or am I f'd?

I do not have the email link download thing.
Just email support and they will send you a new key.
i think with pt3, you had to sign up an account on the pokertracker website. Once you log into your account, theres a section for registration codes and you can just dl a new copy and use that registration code. PT2 they needed you to constantly email them.