If you use Outlook 2000 (or older versions) and need Jewish holidays for 2008 - 2012, get them from the pst in this file:
http://www.outlook-tips.net /files/Jewish08-12.zip

You can import, move or copy them to your calendar.

This pst file is also linked on the "Missing Holidays" page
http://www.outlook-tips.net /howto/missinghol.htm