We also provide HTML Objects for all other editor and publishing software. The kits provide everything that is needed to build your e-commerce product pages. It's all drag and drop. The HTML objects are similar - just not drag and drop.
Documentation is in the kits.
There is no difference between the kits for Mac and those for Windows. There are merely different archive formats. Some Mac users with older versions of Stuffit may have better luck with the .sea or .zip files. Otherwise, take your pick. Inside the wrapper they are all the same.