How can I copy Outlook contacts from one user to another....my organisation is running exchange..

While logged in with the account you want to copy the contacts from. Open Outlook and right click the contacts and choose properties. Click the permissions tab and grant at least reviewer priviledges to the ID that you will be copying the contacts to. Now login as the person you want to copy the contacts too and open Outlook. Click file and choose open other user's folder. Type in the name of the ID that you granted rights to above and select contacts in the folder field. Now drag and drop the contacts you want to copy. Hope this makes some sense.

This works great but a few tips. If it is a contact group that everyone needs you should think about giving access to everyone by putting it in a public folder. And from my experience you should not have duplicate contact folders in an office. This creates inaccurate information. Either create a public folder or share the individual's contact folder with those who need it. That way when one person makes a change to a shared contact, everyone gets it and eveyone has updated infromation.