Hi Community Builder

So I had one general question.
I wanted to edit the way that the GroupJive group pages look.
I have attached a file to show what I would like to do.
If this can be done in the joomla backend, that would be awesome, if not, please reference to me the php files that I need to direct myself towards to complete these changes.
I have labeled it in the photo that I attached, but I would like to make the group logo much bigger, remove the group details and the "back to category" link.
I would like to change the ordering of the tabs, as well as delete the image title, date, and author in the photo tab and make the thumbnail bigger.
I understand that you might not be able to provide custom coding, however if anything please direct me to the php file that I can edit. Thanks a lot. I appreciate your feedback.