I am having 3 probelms with trying to set up a group.

1) Even if I make it a private group ita ppears to be visible to everyone

2) How do you change the settings of a group, ie. change it from Private to Public, I can't find anything to do this with

3) I have invited someone to join a private group, they have got the email, gone to the page and clicked to join. But then it says the Group is set so members can only be added my the moderator. I can't see how I am meant to do this.

 Thanks, any help very welcome.