Complete Guide to Texturing Clothing - Question.

Fungible User

So I'm trying to learn how to texture clothing and am following Esha's 'The Complete Guide to Texturing Clothing'. I know this has been brought up in other threads, but since UV Mapper pro is no longer available, and the classic version does not work on the newer versions of os x, does anyone know of any alternative software that would specifically allow me to apply the created photoshop textures to the template and visualize what it would look like on the 3d mesh. I own Headus UVLayout, so I am able to produce the templates, but in the tutorial Esha has created a Photoshop to UV Mapper Pro action that updates the template in UVMP in order to visualise the texture on the fly and to see whether the different textures line up correctly and look right etc. I'm finding it difficult to find mac compatible software that can achieve this.

The below is what is has updating in her UVMapper to see her project on the 3d mesh: