The document file here is meant for InDesign CS6. The .idml file can be opened in InDesign CS4 or later, but the object types will need some tweaking and adjusting to make things look the way they were intended to look. The PDF gives a visual example of what the file should properly look like, so those with earlier versions of InDesign will be able to tell what the text is talking about.

The files use the African Textile One font offered by Scholtz Fonts, available in several locations, including http://www.fonts.com/font/scholtz-fonts/african/textile-one. It's likely you'll want to make your own font picks for your products, in which case you can tweak the paragraph styles of the document to use your own preferred selection.

And a last hard-learned note- if you're going to use these styles for POD, avoid using delicately-pierced lacework fonts in white on black, like the example African Textile One in the file. While it looks good in PDF, POD reproduction can't always do that fine detail justice.