You can't put Limewire in the sys tray w/ this version. It WILL be in version 1.5

Here is the FAQ from www.limewire.com

Q: What happens to my active downloads if I exit LimeWire?

A: If you exit the LimeWire program, any downloads that were in progress will terminate at this
time. These downloads will not resume the next time you start the program. LimeWire 1.5 on
Windows will have this added feature and will continue downloading your files from your system
tray until they are completed.

Buck