When I used .76, I noticed that when I rested my finger on a sender, their entire history would come up. But on .99, it just sais "searching..." and does not continue (it does not work).
Anyone else experiencing the same problem? I think it's a .99 bug.
I just tested the search feature on my storm with OS .99 and it works without a problem. I was able to hold my finger above a contact and it gave me the history for that contact. I tried it for the subject of two different email messages and it worked too. I would try to see if it works for your email messages.
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