For the hardcore Commerce Server Developer... and demystify the product
Japanese: http://www.microsoft.com/downloads/details.aspx?FamilyId=89D3D830-53D3-40BD-8EB2-3C7C0CE88009&displaylang=ja
German: http://www.microsoft.com/downloads/details.aspx?FamilyId=36A670EF-3AFC-48A0-9066-5F31C80AA56E&displaylang=de
French: http://www.microsoft.com/downloads/details.aspx?FamilyId=2EF44675-DA0B-417D-A883-19802E54F5F0&displaylang=fr
