Attack of the clones

Hi
My friend purchased a Mega clone Funduino from ebay. It is not is getting detected by PC. I suspect USB interface is not working on that board. I want to verify it by programming this clone using ISP headers and by using my original Mega board as programmer. I just want to upload sketch of led blink in clone how to do it any suggestions? All programming tutorials are regarding UNO, is there any tutorial regarding mega to mega programming.