I think I would have to go and have a propper look at it to be able to tell. I still think though that if this is microsofts replacement for the MSN groups, then they should have been obliged to make it possible to trasnfer all across including memberships.
But then MSN have always done just as they liked havnt they.
Another MSN group that I am a manager of is for ex work colegues, and goes back many years, with hundreds of very hard to replace pictures in and I know for a fact that no matter what other group service I move it to, members will be lost simply because they wont (or cant be asked to) want to re join anywhere.
Also the issue of saving content is irritating. Although it doesnt seem to be a problem in Crazy friends, in a couple of other groups I'm in, it takes about 2 mins for each photo to show in the albums, making saving off almost impossible.
I have found a program though that might help. Its not free though, but for my ex work group I might just have to pay up and use this. I have tried the demo and it does work, allowing you to download to your drive all the pictures in an MSN group. (that you are a member of).
It might be worth trying this in here Iced to save everything off quickly.
Stu