If you want to manually hack it:

1. Save it as a character in Poser.
2. Close Poser.
3. Open up the .cr2 file in Notepad or some other text editor. (I have Editpad and it's great!)
4. Keep the first several lines:

{
version
{
number 4.03
}
figure
{

*Note: If you have Pro Pack or P5, the number 4.03 will be something different, like 4.2 or 5.0.

5. Delete everything, and I do mean everything, until you hit the first line that says, "material xxx" (It could be material SkinBody, material iris, etc.) This will be about 99% of the way down the file.

6. Keep the materials that you want. If you want the MAT to apply the material to everything, leave everything in. If you just want to apply the eyes and lips, delete everything but material Iris, material lips, material EyeWhite, material Pupil, and material EyeBall. (These settings are for Mike and Steff. You'll find similar ones for Vicki. Posette and Dork don't have material Eyeball.)

*Note: when I say to leave in a material, I mean the entire block, with the material name and the stuff inside the curly braces just underneath it:

material EyeBall
{
KdColor 1.0 1.0 1.0 1
KaColor 0.0 0.0 0.0 1
KsColor 1.0 1.0 1.0 1
TextureColor 1.0 1.0 1.0 1
NsExponent 30.0
tMin 1.0
tMax 1.0
tExpo 0.600000023842
bumpStrength 1.0
ksIgnoreTexture 0
reflectThruLights 1
reflectThruKd 0
textureMap ":Runtime:textures:PoserStyle:dark_angel_H.jpg"
0 0
bumpMap NO_MAP
reflectionMap NO_MAP
transparencyMap NO_MAP
ReflectionColor 1.0 1.0 1.0 1
reflectionStrength 1.0
}

7. At the end, make sure to have 2 extra curly braces at the bottom.

8. Save the file as a .pz2 file and put in a subfolder in your Pose folder, or as a .cm2 file and save it in a subfolder of the Camera folder.

I manually hack my files because sometimes I get a character texture and find out that it was put in a .cr2. It's easier to me to take 2 minutes to just delete out the parts that I don't want and save it where I want it. (And I feel really smart as it's one of the few hacks I understand.) ;-)