Vista - Windows Search indexing Outlook emails?

Vista Ultimate and Vista Business, both SP1
Office Outlook 2007

A few related questions about Windows Search:

First, does shouldn't Windows Search index and then be able to locate
individual emails (and other OL items)? On one of my machines (the Vista
Business one), if I go to Indexing Options, one of the locations showing up
as being indexed is "MS Office Outlook," but it doesn't seem that individual
emails are included in the results. On my Vista Ultimate machine, MS Office
Outlook doesn't even appear as a possible location to include, even after
clicking "show all locations."

Related question: Is the indexing under Windows Search related to the
indexing in OL? I just reindexed with Windows Search, and that appears to
have been completed. However, if I open OL, and go to Tools|Instant
Search|Indexing Status, I'm told there are tens of thousands items remaining
in Personal Folders to be indexed.

Thanks.

Ken Isaacson
SILENT COUNSEL, a legal thriller
www.KenIsaacson.com