Well, I was in a simliar situation. A long time ago I was a user of mentioned software myself. Then I got the idea of applying the flash-card concept to chess, suggested it to the author, never heard back and eventually started this project. The rest is history.
Anyway, at that time I asked in their forum whether somebody would be so kind to export my repertoire as PGN. I was lucky and somebody did this for me as the basic version unfortunately has no export function, but the pro version has.
You might worry that somebody will get your repertoire, but as long as you send it anonymously you don't have to worry so much.
Stefan