I made a video tutorial on this a while back on YouTube here: YouTube - Limewire won't connect - Vista and XP Fix and the step-by-step detailed tutorial is here: How To Get Limewire To Connect Vista and XP Users*|*BlueFAQs.com This has worked for hundreds of people according to text comments and has a 5 star rating after 10,000 views. There is a hidden limewire folder that must be deleted to allow the connection to take place. It's typically not going to be a firewall issue. Hope this helps you guys.