GoldCard doesn't work

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Hi, when i tried to flash rodgers roms on my att jetstream i got a incorrect cid, and that got me thinking, maybe it will work with a goldcard.
sad to say, it doesn't work for me, but i only tried with one card, maybe anyone will have more luck.

here is the link for how to make the goldcard: http://theunlockr.com/2010/03/10/how...te-a-goldcard/

if anyone wants to know why i want the rodgers rom instead of the original one that came with the tablet, it's because it has more stuff from htc, like wi-fi hotspot.
hopefully this will work for anyone.

oh, in the guide when you type "cat /sys/class/mmc_host/mmc1/mmc1:*/cid"
make sure you type mmc2 because that's the external sd card

I have done it by using goldcard tool
and I have complete flash the zip file, but nothing happened still At&t rom
Any advice