Well I've been looking around for different p2p programs because I couldnt get limewire to work. Well Im back to try harder. Just a few minutes ago I found one that automatically adjusted the number of peers for Service Pack 2.

http://www.kceasy.com

It's totally clean and open source so I'm pretty sure its okay...You can just turn the thing on and not really share or search for anything... Or you can use it if it works for you...

The only bad thing is that your gonna have to have the kceasy on while you use limewire...

I'm sure theres a small program out there that adjusts the peer number for you tho..