download from Atmega

I want to view the program that is in the ATmega..How do I do this?

Are you at all concerned that what is downloaded looks not at all like the C++ that you compiled?

If not, take a look at avrdude.

Contact the programmer and ask to see the source code. In some countries, it is illegal to even attempt to decompile a program because you could be violating Copyrights.