Clarification about Group Blogs:
I am sorry that this comes so late. I have discovered that you can use your same username and password to access both your personal blog and your group blog. If I had known this earlier it doubtless would have saved you guys some trouble. If you've already chosen a new username and password to join your group blog, you'll have to go with that, unless you want to have your group blog administrator send you another invitation to join, and then rejoin the group blog with your original (personal blog) username and password. This might require your administrator to delete you from the group blog first, I don't know. If anyone does this let us know.