Scenario – Need to have users be able to edit some of their own SharePoint User Profile Fields since MySites was not being used.

Solution:  In the portal you can create a link to point to  /_LAYOUTS/editprofile.aspx    This will lead you to Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\LAYOUTS\editprofile.aspx 

Difficulties and Drawbacks:  This is an out of the box SharePoint form.  When you customize this form, it will show all the fields in the User Profiles if they have a value, whether you click on show edit details in CA User profiles or not.  This form is a bit goofy to begin with but it does get the job done.  The form is pretty ugly from a look and feel standpoint.  

These were couple of the sites that were used to customize the form.

http://softwaresolutionsleones.blogspot.com/2008/07/moss-and-editing-user-profiles.html

http://www.sharepoint-tips.com/2006/12/fixing-sections-bug-in-edit-user.html