BuddyPress.org

I am needing help on a few issues. I have latest WP & BP available as of today, and am using theme Twenty Thirteen. The website is http://www.ogfs.org
1) When registered users log in, I need them to only have access to the front-end rather than their limited back-end page. (Note: I am using BP Registration Options to require admin approval upon registration).
2) Disable the toolbar at top for all non-admin users
3) Recommendation on plugin that allows photos to be posted to group post comments. I have tried a few that allows media into the original post, but not the comments. A secondary alternative is possibly allow media attachment into private message (not ideal, but acceptable)
4) Ability for users to Edit their comment. Delete works great, but need ability to edit also. Plugin?
Thanks in advance for any and all assistance!