there was a new program released called gbaexploader which supports the new 3 in 1 chipset. thats works fine with the cyclo ds can swtich on rumble from there.
It's not a problem now as the new cyclo ds beta firmware supports the rumble in cyclo menu fine.
The cyclo ds has a very nice support forum where it's easy to find info on something
Something which i didn't like much about the my supercard. I'm not sure on there new one though.
But overall It's nice to know there vocal on there forums an reguarly release updates.