I've tried all those downloads as well... none work. I'm going to try a smaller SD card, maybe they sent me the wrong cards, though I ordered the SDHC It's the last thing to try at this point
Not to sound like a prick but I always wonder when I see these posts why didn't these people find this site and do research before purchasing the cards? I must have read at least a dozen reviews and researched which sites we're reliable for at least 2 weeks before making my first purchase back in 2008, which consequently are the same exact cards I still use today.