Pocket Contact Synchronizer is a free (but unsupported) Microsoft tool for Outlook 2002 and 2000 that copies items from any contacts folder--public or private--into your default Contacts folder, putting the name of the original folder in the Categories field. Microsoft designed the tool for ActiveSync users who want to get contacts from a public folder into their Pocket PCs, but Pocket Contact Synchronizer might also prove useful to non-PDA users who want to consolidate contacts from several folders into their main Contacts folder. However, despite its name, Pocket Contact Synchronizer doesn't perform true synchronization. Changes you make to items that you've copied into the Contacts folder don't push back out to the folders where those items originated.

http://office.microsoft.com/downloads/2002/opcs.aspx