I know how you feel, I have the FX5700, and no where in my manual did it tell me to use the DVI port to enable dual view either. A nice chap of these forums did.
The black and white problem, should
be easy enough. Its just a driver option.
In the right hand side, try switching between Auto Select, Composite Video-Out and S-Video Out.
You may also get a b&w screen if it sets your region by mistake. As shown below.
I have to make sure mine selects I/PAL, which is started doing correctly with the last 2 driver releases.