[imp] PleaseHelpMe! - IMP and exchange 2003

[Bianchi Quota Leonardo]

Hi, I have a running FrontEnd IMP and 5 uw-imap boxes plus a recent
Exchange 2003 SP2.

Horde-2.2.3-1 ; IMP Version,IMP: 3.2.1,PHP Version; PHP Version: 4.2.2 

How can I configure IMP so that I disable the view of exhcange folders
like Notes, Contacts, Activities and leave the IMAP "normal" ones
(Inbox, Trash, Sent, Drafts)? The aim is to disable persons to
edit/delete exchange items from IMP and if you have other solutions of
course are welcome!

Thank you in advance,

Leo.