2.5.5 upgrade no connxion
 

I have today just installed 2.5.5 over version 2.4.3 which until now was working perfectly. No other changes to my system. This version apparently refuses to connect, button at left-bottom remains red. And unfortunately, I have erased my previous version (so confident was I!). Until the limewire folks sort it out, wouldn't it be a good idea to allow the download of PREVIOUS versions?
Thanks in advance and hope to be using the programme again soon!
Charly