The same as always.
Go to Tools Account Settings Address Book Tab Outlook Address Book
Change... Set sort order there

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Russ Valentine
[MVP-Outlook]
"Denis" denis@durnian wrote in message
...
When creating an email message, when I click on the To button a list of my
contacts opens so that I can select a contact. In Outlook 2003 the names
appeared sorted by File As Names but in 2007 the contact names are
displayed by Name starting with and sorted by either initials or first
name.

Is it possible to change the settings so that the list is displayed by
File As names?

Denis