this is an installation problem. you wanna look at the threads in the installation section...
also please post your computer specifications when posting a problem, this will enable people to help you. if you don't know what's needed just have a look at forum rules.
sorry i can't help further, but nothing can b said unless i at least know your OS. if its windows, i suggest you download the full installer for windows from the limewire site rather than the online installer.
hope this helps.