As far as I know the only way to use Bluetooth with the 600 is with an external adapter. I've checked a few sources and haven't found any kind of internal adapter. My son (who manages a wireless outlet) says my best bet is to upgrade to the 650, but I really love my 600. Besides, I'm kind of waiting until April when the 700p comes out.
A quick solution for your pictures would be to e-mail them to yourself (your PC), then download them into your 600 through the hot-sync cable.