The source code FLA will be provided after purchase?

FLA is not and won't be for purchase for too many reasons.

I would also like to buy an open file. Something has changed in that you can buy. I wrote this question to you through the ticket but you did not answer. I see two choices: you have to sell it or go to meet clients and paid to make personal changes in the player. I've already written three ticket but not one has not received a response. Perhaps you are very busy.

What for write emails if the answer is simple and here?
FLA is not to purchase. It's not something we can discuss.

Well you're not ready to sell the original file player. Are you ready modify your player under our requirements such as $ 200 - 300?

This is also clearly said that I do not modify palyer's source on custom wish.

First I'm overworked with current projects, second - some integrations posted by clients are not something that can be integrated with a player like Nuevoplayer is, or it's not possible due to lack of test environment.

That's how it is also with your custom ad network integration.
First of all - most of documentation is in language that we do not understand, but also found action script code is not something that could be integrated with Nuevoplayer.
Even if you have full Nuevoplayer source, not you or your programmer could integrate such code. It's completely different architecture.

What is your attitude to write individual plugins for the player version 5?