If you still want to flash through SD Card,
you can read through the threads in the vogue sections.
There's a bunch on this,
for example, here's one:
http://forum.ppcgeeks.com/showthread.php?t=69524
here's another:
http://forum.ppcgeeks.com/showthread.php?t=68911
Found in about ten seconds tops,
and about five of those seconds were spent copu and pasting. lol.
Thanks for helpin out DD.
You got yourself a thanks.