The ISA Server MP download page had incorrectly listed "2.0" as the version of the management pack as opposed to "05.0.5720.0001".  I had the page updated today to reflect the actual version of the MP included in the .msi package.  While I was at it, I had the MOMNotifier.xml updated as well for those of you who are using the MP Notifier management pack.  The update to the download page was cosmetic only, no changes were made to the management pack.

Microsoft Internet Security and Acceleration (ISA) Server 2000, 2004, and 2006 Management Pack for Microsoft Operations Manager (MOM) 2005:  http://www.microsoft.com/downloads/details.aspx?FamilyId=F6515332-E72F-4860-AF02-983A95501452&displaylang=en

Microsoft Management Pack Notifier for Microsoft Operations Manager 2005:  http://www.microsoft.com/downloads/details.aspx?FamilyID=a24cea3a-1920-4b18-8cf2-8bf78c94c917&DisplayLang=en