Can't install adobe raw 8.3 in Photoshop Elements 12

Hello,

We've been using Elements 10 for a number of years now without any issues with our camera's RAW formats.

We just upgraded to a Nikon D5300, and much to our dismay, discovered it was not supported.

After installing a trial of Elements 12 (can't install 13, we have Vista), it just shows Adobe RAW 8.0.0.137 in the About/Plug-in area.

I've downloaded Adobe DNG converter 8.3 which lists this camera from here:

http://www.adobe.com/support/downloads/detail.jsp?ftpID=5695

This seems to be more of a seperate program than a plug-in, right?

does anyone know how to get elements 12 with 8.3 raw support?

Thank you much!!