Commerce Server 2007 and MOSS 2007 Integration WhitePaper Released!
Thanks to Ryan Donovan for sharing with the community
https://www.microsoft.com/downloads/details.aspx?FamilyId=2AEB1A5E-43B8-483B-8CB2-86C0E82BF0AB&displaylang=en (actual download)
https://blogs.msdn.com/commerce/archive/2007/03/03/using-cs2007-with-office-sharepoint-server-2007.aspx (official blog post for public consumption on the Commerce Team blog)
Enjoy!