2 questions here so I will answer seperadly.

Bump and displacement maps are geyscale maps loaded at GC 1.000.
If you have the UV-Layout, you can paint them on the UV template.
if you do not have the UV template, you can make one using any 3D app, UVunwrapper, Wings, Blender or other.
Also, you can change the size of the maps at will. Just stay at the standard sizes as mentioned above.

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Most figures come with a lip material.
So using a Blender node, you can change the color of the lips seperadly.
Or use the Color_Math node, whatever suits your goal best.

If your figure does not come with a lip material, you can again change the color by painting a second lip diffuse map and use the Blender node to blend them together with the first one.

And YES, you can use a Bump or displacement map to get the contours, or depth in the lips.

Experimenting with Poser is most of all : "Experimenting" and having fun doing so.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!