The join date, Tammy, is visible when you click the member's name. I liked seeing it out and next to each person's post too, but I think they're decision to remove it from the forum face was a good one which prevents excessive scrolling (every line counts). Look how many interests Angelofdeathzz has, at left. It's adding several lines to his signature area which means we all lose cumulative seconds of our lives scrolling through his multiple posts in the forum. The Great Mantis Goddess (BbHn) does keep tabs on such universal expenditures of time and we are all judged in the end.
The avatar issue is a minor annoyance as I have already stated. The ball is in each user's court, in fact, to upload a new one (and let me know if it doesn't work). The software seems to encourage people to use the new "gravatar" system. You'll probably see an option for that when you try to edit your avatar. It doesn't appear that Rebecca has attempted to edit her avatar yet. If anybody else besides RevWillie can attest to an avatar-changing issue, please say so. Perhaps the problem is that old avatars did not meet the current avatar size requirements. Avatars that were too small may now show black lines at the borders, while avatars that were too large were deleted or fail to show currently. I suspect Rebecca has no copy of her avatar on file and so I may only apologize for the loss.
The Like This button is now fixed. Everybody gets 5 "Like This" votes per day.
(I am an update-the-software when updates are available kind of guy.)