Sounds like you bought LW from a scam site. There's no LW 'lite'...LW basic is free & LW Pro cost $18.88 a year ago & included free updates & email support for 6 months.

The only official site for download is Lime Wire » Download LimeWire

Membership? - **BEWARE** - Download p2p Clients ONLY Thru Official Sites (click on link)

If you ever decide to buy LW Pro, remember to save & back up your Pro installers