In Oct 2007 LW offered 2 versions of Pro - 6 months of email support & updates for $21.95 & 12 months worth (Extended Pro) for $34.95. If you buy Pro from the official site then LimeWireLLC shows as the vendor on your CC statement.

LW has never cost more than $34.95 from the official site. Scam sites are the ones who charge heaps & offer bogus lifetime memberships.
If you paid a scam site for Pro then your email address would never have been in the official database.
Membership? - **WARNING ** BEWARE** - Download p2p Clients ONLY Thru Official Sites

Even if you had bought from the official site, your Pro benefits would have expired ages ago. At best you would've been able to download free updates until Oct 2008 if you'd bought the Extended Pro.

Sorry, but if you want to use Pro then you're going to have to buy it again. Versions have changed heaps since 2007 Why not just use the free basic LW for a while & then think about going Pro if you're happy with the way things work? There's not a huge difference between basic & Pro anyway