Make sure the ribbon cable is on the right way. You may have to flip the cable upside down. Is the LED on all the time? Also make sure you have the power connector on the right way!
I tried a couple drives and they worked without my doing the J2 mod. (I suspect these drives must have J2 connected like yours, I can check to make sure) I had 6 drives that all work. I tested them on a A600 and A2000. Make sure you have everything connected right.