What their site says:
- ShareTuner was developed to be simple and easy to use.
- Contact us via email: ...
- Download button
That's not very much about the program itself. No demo's, no FAQ, no documentation. Does the program have a built-in help?
If you can't find the info you need, I suggest you mail them.
Kees
How can I edit films with Sharetuner?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic