On widgets configuration, you have the option to add "recent activity" widget and it adds the users avatar to the content(like snapshot below). Is there a way to create a tile for activity and pages to get this functionality? I know you can do "recent blogs" but it doesn't show the avatar or part of the blog.
Reviewing through your description, you should see the following behavior on a group/space's activity page:
However, if you are not seeing this functionality in your instance I would recommend submitting a case in your customer group ( MyJive Secret Support Group Administration FAQ ) as a next step so that a member of our support team can assist with further investigations into your specific instance.