I have found the following tool which is very useful to import/export the profile properties in Moss 2007.
In “SharePoint 2007 Shared Services Provider User Profile Property Replicator” was designed to take custom user profile
properties and export/import them into another MOSS 2007 server.
The Source Code and Release is available in CodePlex
http://www.codeplex.com/MOSSProfileReplicate
Circa,
Udayakumar Ethirajulu
http://www.sharepointblogs.com/uday/default.aspx
http://groups.msn.com/DevGeeks
Aliquam pharetra