as the guest "lux" said:

1. d/l the file
2. open terminal window, and go to path of where file was d/l'ed
3. type "sh LimeWire.sh" (remember...unix is case sensitive)
4. message appears saying "Preparing to install..." (this will take a few minutes ...be patient and let it run...
5. window will appear...choose install folder/path
6. once completed...navigate from command line to LimeWire directory....
7. once in LimeWire directory...type "./LimeWire"
8. again, wait a few minutes...and the nice graphical interface of LimeWire will appear...the application is simply "java" as far as the finder is concerned...