The "Microsoft Windows DHCP Service Management Pack for Microsoft Operations Manager 2005" management pack has been updated (.3500).

Get it here:  http://www.microsoft.com/downloads/details.aspx?FamilyId=C66E88A9-5960-4329-BF6D-F5CA05EFD8B5&displaylang=en

What's new?  Read the "Management Pack Release History"

Management Pack Release History:

05/08/2006 Updated reports to support SQL 2005 Reporting Services.

10/26/2006 Management Pack updated, support added for SQL 2005 Reporting and fix included to address “Not Authorized” alerts for Windows 2000 DHCP Servers.

-Justin Incarnato