Users can worldedit other users worldguarded areas! Help!

I use a creative server but we have ran into the problem of people being about to world edit protected areas when there are not entitled too, is there a plugin or setting to fix this? World edit is essential to making these builds but being able to mess up others work is not!

Don't want to bump, but this is a fairly large problem and I need to solve it quickly.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Are you running a 1.2 server? Also have you given them the negated versions of commands you don't want them to have?

 

Yes, I am running a 1.2.3 server and I have chosen the certain WE perms I want them to have, such as the //cut perm for example. Now they can cut into worlguarded areas without being the owner of that area. This is where the problem lies.

 

Ok, so you gave them WE perms, that is the problem. In order to fix cutting into worldguarded areas you have to use the blockcmd flag in that region to block them cutting with worldedit. Hope i helped!