Calling the parent form from a child form is one of the biggest
unsolved juggernaut in Outlook programming.  Outlook structure is just
not set up to do that easily.  Many people have created a unique number
field and passed that to the child item.  The problem has been that one
can't do a fast search on a custom field, and in a folder with a large
number of items, the search takes too long.  Theoretically, the
messageID and StoreID fields should provide a means of bring it back,
but that works only if the parent item has already been saved, and only
so long as it is not moved to a different folder, because it gets a new
set of idfields when it is moved.

Sorry I can't be of any real help, but don't feel bad that you can't
find an easy solution.

I would guess that the best resources would be www.outlookcode.com or
www.slipstick.com.  See if they have anything on the subject.

Hollis D. Paul [MVP - Outlook]
Hollis@outhousebythesound.com
Using Virtual Access 4.52 build 277 (32-bit), Windows 2000 build 2600
http://search.support.microsoft.com/kb/c.asp?FR=0&SD=TECH&LN=EN-US
     
Mukilteo, WA  USA