http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=0f1eec3d-10c4-4b5f-9625-97c2f731090c

Version 1.3 includes:
(1) Enhancements and bug fixes to support a wider range of ADM templates for conversion to ADMX.
(2) Enhancements to code and documentation for conversion error reporting and warnings.
(3) Improved stability when editing policy setting registry values on the Values tab.