Change in “to” not shown in contacts

Using Exchange 5 on NT4 SBS with Outlook 2000 clients.

Users have contacts in their Mailbox Contacts folder and When they click “To” in a new message, they select “Contacts” as the source of the address list.

They are in the habit of editing/updating email addresses here in the “To” lookup list – but it turns out these changes are not being refelected in the “Contacts” folder which has become out of date.

I need to get access to the up-to-date addresses = to copy, print or export them… where are the up to date contacts being saved?

Jenny