Go to Tools > E-mail accounts > View or change existing directories or
address books > Outlook Address Book > Change. > Set your sort order there

Signature
Russ Valentine
[MVP-Outlook]
> When I open my Contacts from the "To" button in an e-mail, the list is
> sorted
> by first name. How do I get it listed by Last Name? I am using Outlook
> 2003.
>
> Thanks.