Where did you download LW from & who did you pay (check your CC statements if you still have them)??

LW basic is free. The only official site for downloading any version of LW is Lime Wire » Official Website & Free Download « LW Pro costs $18.88 & includes free updates & email support for up to 6 months.

Sounds like you were scammed in the past. After 2 1/2 years, there's nothing you can do except put it down to experience & make sure to only download from the official site in future
Membership? - **BEWARE** - Download p2p Clients ONLY Thru Official Sites (click on link)