Aigh this is the official Windows Live Messenger 8.0 Beta. you dont need to be invited to use it, you can use your own msn nick. whas new bout it check this out. Windows LiveMessenger Beta is the next-generation MSN Messenger. It has everything you already love about Messengeryour contact list, emoticons, and instant access to your friends via text, voice, and videoplus new ways to connect and share documents with almost magical ease. As always, it is free to download Messenger and use most of its features. What you will be able to do with itSend all your familiar winks and emoticons, plus some cool new onesHave real-time text, video and voice conversations* Call your friends mobile or land-line telephones by signing up with Verizon Web Calling to make affordable domestic and international calls Easily share documents of all kinds with Sharing Folders Make free PC-to-PC calls with other Messenger users *Both parties must have compatible Web cams, microphones, and speakers. Please note that some beta features may not be available immediately.