some people said 1.5.1 works, other say it doesn't. just download anything going back to 1.4 and try it. the problem is you can't dl the old loaders, the page was updated to only allow the 1.6 loaders. so either way you won't be able to play the new pokecrap game.
as for acekard, they haven't updated their loader in a very long time. they rely on akaio. so i wouldn't expect an *official* fix anytime soon.
acekard has commented to us that they do not know what the problem is with the 2.1. they card is real and not a fake or clone. they are unsure how to fix it, and to be honest, i don't think they have even tried.
your best course of action right now is to invoke the 1yr warranty and return it to your reseller for a replacement.
-another world