At this time, upgrade pricing is only available to owners of a full Kontakt-based (Native Instruments) or ARIA-based Garritan library and there is not an upgrade path from the Garritan Pocket Orchestra included with Sonar. Any full Garritan product can be purchased at regular price. For information on purchasing Garritan Libraries, please follow the link below: http://www.finalemusic.com/Store/GarritanProducts.aspx