What now (after updates have been applied)...?

It's amazing how involved the DST thing has gotten. It's like Y2k all over
again. Let me start by saying that, over a month ago, we started listing
appts in Outlook (after 3/10/07) with the correct time in the subject line.
Anyway...

Using 931836/92666 and a few other tools, we've updated our Windows Server,
individual machines [running 98(yes we have two machines still running it),
2k, XP), and Exchange Server, in that order. (1) Should the Windows Server be
rebooted before or after the Exchange Server has been updated? (2)Once all
the updating and rebooting has been completed, will those appointments that
appear an hour off, prior to the application of the updates, correct
themselves?