You can't make yourself be an UP. Limewire decides for itself what it needs. It also depends on your setup, connection speed, how long your online, and I remember reading that the newer versions of LW don't need as many UPs. Also if your sharing alot of files and getting alot of uploads you will tend to be a leaf. I'm not sure how it all works, but being an UP sounds cool but is not any advantage over being a leaf.

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