Help requested: color subject w/b&w background

[mstum]

I'm hoping you experts can give me some constuctive suggestions on a couple of photos:
http://www.pbase.com/mstum/manip

Keep in mind that I'm a complete newb when it comes to post-camera alterations, and I only have PSP8 at my disposal. (I can't afford a new camera *and* PS :)

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Matt Stum
http://www.pbase.com/mstum