I suspect you do not have a genuine version of Limewire, if I am reading your post correctly. The Basic version is free. The pro version costs US$18.88 and both are ONLY available at
www.limewire.com see some of this link including Page 5 ....
http://www.gnutellaforums.com/open-discussion-topics/28751-membership-warning-beware-download-p2p-clients-only-thru-official-sites.html This may or may not be the answer to your problem, but it is a good place to start.