Outlook doesn't support importing to a custom form. You'd have to write
custom code or use a third-party application. See
http://www.outlookcode.com/d/customimport.htm.

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Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I am importing data from a CSV list into a custom form in an Outlook
>contacts
> file. The import always brings data into the standard form even though I
> set
> the folder preference to my custom form.