The version with MMS isn't available and I don't think that it will.
I can tell you what packages to get from cydia if you wish to enable MMS on the version of Whited00r that is available now.
<Fri Feb 25, 2011 6:59 pm> [hr:38gem34n][/hr:38gem34n]
Quick Question:
What would happen if someone were to restore an iPhone 2g to Apple's original 4.2.1 firmware, the one provided on Whited00r presumably for the iPhone 3g iPod touch 2g? I can't tell as there are no labels for the firmware under Apple's Original.