the source you have will not compile straight off with recent versions of WDL-OL, since lots has changed. The way to upgrade it is to strip out the pertinent source code (i.e. autotalent.h/cpp and the mayer fft stuff) and re-duplicate one of the template projects in WDL-OL and bring it in to the new folder.
I've done it for you:
https://github.com/olilarkin/autotalent
you can clone this repository into the IPlugExamples folder of WDL-OL, and provided you've put all the SDK files in place it should compile straight off.
oli