No, you cannot use the models that come with Poser (even altered or reduced poly versions).
The only meshes you could use would be ones whose license specifically says they can be used for that. Most of the models in Poser and other 3d apps are too high-poly for games anyway.
The best thing might be to download one of the free modeling programs and try your hand at modeling, then you can make your own (and even sell them to other game designers if you want).
If you're interested in checking out that option, go to the Wings3d Forum and click on the banner at the top of that forum and it will take you to the website where you can download wings3d (a free modeler).

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Jeff

Renderosity Senior Moderator

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