Public Folder Permissions & MS Exchange Server Admin Program

We have a main folder created under “All Public Folders� and 100s of sub
folders. Recently our “IT support� guy moved exchange to a new sever and we
lost all permissions. I’m the one who assigns permissions and sets them
through my outlook on my computer. I can still see all the correct
permissions set but people can’t do what they have permission to do. The IT
guy says he has to go to each & every subfolder to reset the permissions.
But everything I’ve read says you can go to the exchange server and set the
permissions on the main folder through “Microsoft Exchange Server
administrator� program then propagate them to all subfolders. He says it
will only affect new folders, not existing ones. This doesn’t make sense to
me. He seems to be confusing propagation and inheritance, no? Maybe I’m
wrong, I’m just someone who’s interested in computers and knows how to read
help files! Point being, I’d like to try but I can’t seem to find the
“Exchange Server Administrator� program and the guy didn’t know what I was
talking about when I asked. Can anyone tell me how to find it? Am I looking
for something that’s actually entitled “Microsoft Exchange Server
Administrator�??

Thanks to any and all who can tell me where to find it as well as shed any
light on this problem!