Do you have Java installed on your computer? You should have the latest version which is available from the link in this thread, also check the instructions about downloading the installer. Java must be installed before you try to install Limewire.
http://www.gnutellaforums.com/showth...=fixes+working
Also it will be worth using the alternate windows installer, also this must be downloaded
If ths doesn't help, please let us have more details of your system.