Simsounds 4.0 help

I purchased and downloaded this add on from the sim market. I also got fsuipc.

Problem is; I can’t seem to make it work. I pasted the license in and selected the appropriate sound card etc. When I tried to test some of the sounds, I get “invalid sound file…”. Did one flight and I could see some of the aircraft’s parameters updating on the app, however no sound at all.

A manual sure would be nice…

Any help would be appreciated.