You can find full details on upgrading to the latest versions  on our website here:
http://www.xara.com/products/designer/upgrade.asp

This includes upgrades from earlier versions of Photo & Graphic Designer and Designer Pro including Xtreme, ArtWorks, CorelXARA, Xara XS, Xara X, Xara X1 and Xara Webster (for all these versions choose Upgrading from 'All older versions of Photo & Graphic Designer'), also from Xara Web Designer, and from many competing graphics products.