Getting a "Dont have permission Error" with Admin Account.

Are you sure you have permission for Admins to use it?

In the Download Log settings make sure "Administrators" is checked on "Usergroups That Can View Download Log" setting. This needs to be checked, Admins don't have permission without the check mark.

Do non-admins have permissions to view the log? Have you tried?

Ok so this is weird, so I tick the box "Administrators" and click Save. Then once the page refreshes the admin box is unticked.

Hmmm, If you go to Admin CP -> Plugins & Products -> Plugin Manager, scroll down to the plugins for Download Log.

Make sure you have a plugin called "Usergroups Setup" and that is is enabled.

Is there a chance to integrate this modification along with Ultimate Media Gallery?

Not likely- I can't even find such a mod for VB4 here on vbulletin.org- I see a version for VB 3.8.

Too bad, it seems to me that the principle of the UMG for VB3.8 is the same as the version of VB4. But I'm not a coder and do not know.
Thank you for your response