Assuming that you archived it before turning it off;
Connect to your archive file via File-> Open-> Outlook Data File...
Then select your Calendar from the archive and move the items which you
didn't want to get archived back to your main Calendar folder.
This goes easiest when setting your view to All Appointments.
--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
http://www.msoutlook.info/
Real World Questions, Real World Answers
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"lindseycadle" <(E-Mail Removed)> wrote in message
news:697DA41B-9FF2-40E5-9525-(E-Mail Removed)...
> I just turned off my autoarchive, and I cannot retrieve my old calendar
> items. Is there a way to retrieve them?