Everyone should upgrade to this version of OpenIT because it includes the documentation on how to add new users. If you do not add an admin/root user (all 4's in the different *Perm columns), then you're only able to access a very small section of OpenIT.
1.0.1 should *not* require any database or inc/settings.php changes.
The following has changed from the 1.0 release:
Fixed KB permissions
Fixed KB Article Layout
Fixed consistent HTML_Table error
Improved row highlighting
Added tools/ directory
Added lookup.php script to get IPs