i followed the instruction carefully, but then it when i went to User under AdminCP, and clik on Read PMs, it said page not found.

any ideas ?

thx

Upload "read_pms.php" to your admincp folder.

The coder is unlikely to change the way it's setup and I agree that would be a pretty bad idea.

Is there any way to hide this from letting other members seeing the mods installed. Since anyone can go to www.xxxxx.com/admincp/read_pms.php and see its installed.

They can't read them without logging into the admincp first ;)

He's saying that some people don't want their members to know that the staff is reading their PMs, so he's looking for a way to hide it from people who know what to type in to see if a forum is using this.

^^, since by going to that URL, you know the staff have the mod installed.

My thoughts exactly, and why have it available to your other ADMINS if they can't use it anyway. That just stirs up the pot, SO, there is a way to hide it COMPLETELY in the ADMINCP.
To do so, open up the cpnav_rpm.xml and where it says: permissions="canadminusers", change that to permissions="canadminplugins".

Make sure that for your other ADMIN's permissions set to where they are NOT able to Administer Plugins.
Edit Administrator Permissions -> Can Administer Plugins -> NO

This will make even the link invisible. :D

is there anyway that you can disable usergroups from being able to delete their pms?