I'm pretty sure I'm not reverting to an older version, unless it's doing it automatically. I assure you, I'm doing nothing to cause it to revert. Also, I always make sure Limewire shuts down properly before shutting my comp down (except in the event of a crash), nor have I ever touched the .dat file. Both times my pending downloads have been lost have been upon restarting Limewire after updating. While my comp has crashed a couple times with Limewire running, there seemed to have been no adverse affects on anything, as my downloads were still there upon restarting LW.

While the information on restarting old downloads from the Monitor screen is highly useful and pretty well solves my problem, I figured I should reply to thank you and to allow anyone else with the same problem I've been having (as minor as it's been) easy access to answers.

Thanks again for the very prompt reply.

The next time that you have no pending downloads in your incomplete folder. clear all downloads (downloadwindow empty) then close down Limewire and erase the entire incomplete folder. When you restart Limewire a new incomplete folder will be created automatically with a new downloads.dat file

Worked wonders for me