Papi, 50% won't work - half of the profits yet none of the risk. Unless you post some SOLID proof of performance, this won't fly.
What is the risk? have you even read what it says? Have you contacted the Manager? I think not. There is no risk. You pay 50% of the profit you earn. You don't have to pay anything! The software is currently in the last stage of testing and will be provided at the end of the video software, how it works!
The fact that you don't even give any proof of how the system works but instead advertise the 50% profit margin is a little on the line of mistrust. There's no guarantee what the software does and how it works or whether there are any loops holes you could exploit. This is why proof of performance should come first, without legitimacy everyone reading your post will think nothing but 'scam', even if this may not be you!