Ya, didnt notice you were editing the thread
I have confirmed and fixed #2 and #3 as well. This will require you to download package beta 4c and replace your physical files (specifically only gars_admin.php, gars_class_core.php and references.php).
#4 is a known issue. You cant delete mod sets right now. Either edit them to suit or just ignore them for now.
Thanks for the help!