The 1952 Topps version of SetBilder is online this morning
53,54,56,& 57 Topps versions should be available over the next 7 days or so
All fully functional versions are offered as a 90 day Free Trial
System Requirements are Windows 7 (or higher) and Excel 2007 (or higher)
I do not have Mac version developed yet
Take a look
www.setbilder.com and let me now what you think - Thanks