Hi Tabib,
For what it's worth, I have 32-bit Vista Business SP2 and I added children and spouse to several of my contacts and then added the appropriate columns to the Contacts Folder and the information does not show up for me either. I have absolutely no clue why. I tried some other fields, and they seem to be working just fine. To say the least, this is very perplexing - and given that we have different versions of Vista (though both 32-bit) and are not connected in any way, I'm inclined to think it may be some type of program flaw rather than a configuration problem. And I cannot accept that we both happen to have the same problem with the same fields as a coincidence or that we've both somehow done something to cause this - so I think we can pretty much rule out problems with our computers. I'm looking into it and if I find anything I'll post it here.
In the meantime, perhaps someone will post a suggestion on how to get this information to show.
Good luck!