make your diffuse value 0.00. Add a reflect node to the reflection color and make the reflection color block on the main surface node the color you want the metal to be (don't change anything on the actual reflection node). Set the reflection value on the main surface node to 1.00 and add a glossy node to the Alternate Specular. Might wanna change your KS value from 1.0 to 2.0 and lower the roughness value and raise the sharpness value.

All this is useless unless there is something in the scene to reflect. If there isn't, it's gonna look like crap ;).

I also have a few metallic shaders in freestuff - you could try one of those if only to see how the shaders are set up. It says they are for Poser 8, but they should work in 7. All those nodes exist in Poser 7.

Laurie