How did you lose your Limewire Pro? The LW library doesn't actually contain your downloads. It is just a list. The actual files are elsewhere.

If you bought Limewire Pro within the last six months, you should be able to log in to the LW website with your e-mail and download a new copy. If you bought it more than six months ago, then you're out of luck. You'll have to buy a new copy, and be sure to make a backup of it this time!

Good Luck

Dan