Renewed controller Vigo L7 original had a problem

I now have a new controller but am having further problems. When I try to download the firmware it says Cannot find avrdude.exe and avrdude.conf. I have download these 2 files but they are not found. Should I move them to somewhere where they can be found. Have had this printer now over a year and no luck so far hopeing for a helping answer.
I am not a programmer but can follow what the experts say most times. Thanks in anticipation.