I have been using this little tool lately to help me with finding important emails previously. It might be worth a look. It is called Lookout for Outlook Give it a try, it is great for staying organized. SpyBot and ADA didn't see it as spyware, so that is usually a good sign.
And now the update. Microsoft bought lookout and it was not developed. A lot of people were very angry (including me) about this. But maybe I can cheer you up because someone (not Microsoft) decided to develop this wonderful tool. The result is lookeen , the resemblance is clear, I am wondering why nobody had the idea before...?
Do you? I prefer lookeen but the choice is of course yours , oh I've forgotten the link for lookeen, it is http://www.lookeen.net
I tried the Lookout for Outlook link, but it did not work for me. I find that Outlook 2007 search features are very good anyway. I like using the search box and creating search folders.