Hi. 

The software is delivered as a download, it's availabler immediate after you finish the order.

I don't understand the reference to Studio. Reality 3 for Poser integrates in Poser and it's available from http://www.renderosity.com/mod/bcs/reality-3-for-poser/98576/

There are two separate versions of Reality: one for Poser and one for Studio. You purchase the one that fits your environment of choice. In your case it's Reality 3 for Poser .

You don't need to buy anything else. The programs comes with extensive documentation that you can also view online at http://preta3d.com/reality-documentation

There are also video tutorials available from our YouTube channel: http://www.youtube.com/user/PretA3D

You don't need to use nodes, the Reality material editor has been designed to avoid nodes and it's much simpler than the Poser material room. As with any software you need to learn the basics and spend a little bit of time with it but Reality converts your Poser materials automatically. Most of the times you get excellent results without changing the materials.

Hope this helps.

Paolo

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