Outlook has no mechanism to synch public and private calendars. You can see
this page for some possible workarounds:
http://www.slipstick.com/outlook/sync.htm

Signature
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Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. Due to
the (insert latest virus name here) virus, all mail sent to my personal
account will be deleted without reading.
After furious head scratching, FranklinST_admin asked:
| I have some users that use a shared calendar in a public folder to
| keep track of who is in and who is out of the office, as well as
[quoted text clipped - 8 lines]
|
| Thanks in Advance.