Transmission on 2002 E430

I got a Hain@ Mercedes Benz Carsoft 7.4 Brand New MB Carsoft 7.4 Multiplexer
tried everything to get this thing to work. The best I got , was downloading about 13% of the program, then a warning pops up that there is a compatibility error. but it still gets to the finish and says it's successfully installed. But when you run the program it stops saying that it is not fully installed.