I too have found that upload limits don't work.Have theoretically limited uploads to 4 users,(and set to upload completed files only) but neither work.Here I am downloading at 2-3 KB's while 15 people are uploading at 30 KB's.(and another 10 waiting in line!),If I kill these my download jumps up,but I can't sit here for hours "killing" uploads consatantly.Will have to abandom Limewire soon,even with DSL it is taking hours to download even small items while freeloaders suck stuff out of my PC like crazy