Hey everyone:
There seems to be an issue with SocialTwist's platform in connecting to MSN. I've gotten some emails from people asking me to look into this. I have sent an email to SocialTwist.com and asked for their feedback on the issue. As soon as I hear something or have a resolution I will post here, and release an update if necessary.
Better late than never!
I've updated the tell a friend module to now support Joomla 1.6, 1.7, and tested it on Joomla 2.5beta. I also updated one minor security problem (missing JEXEC) too. Check out the downloads section to get the updated version!
-Chad