Creo que puede tener que ver con esto, la verdad es que también lo buscaba y lo acabo de encontrar
Habia leido que existia una versión con una versión soportada no me importaba donar dinero pero no lo había encontrado:
Woohoo, you're interested in beeing a supporter? Great idea!
As you know there are a lot of bills we have to pay for: electricity, hardware (for testing and developing software), webspace, etc.
In fact it seems to be a fussiness, but all together we have to pay for.
But that's not enough - we spend hundreds of hours to develope this great piece of software by "reverse engineering". That means for every little problem we had to use the "trial and error" method. As you can imagine we were often sick of it all

.
But finally we developed a very useable emulator that supports hundreds of games - and it'll become more and more every day.
One of our principles is to keep this software free. But we're also interested to earn some money to pay out bills. Therefore we developed a special "supporter-version", which allows to save and load your game in realtime at every position on every game and also privileged support. Free updates until the next major-version is released is also included (this means if you buy v0.10 you also may download and use 0.11, 0.12, ..., 0.19 for free).
Te dejo el enlace:
http://www.fpsece.net/support.htm