I need the right person's shirt in this picture to be a black shirt with white lettering under the red logo. Can anyone do this for me real quick. I need an example of both, and my PS skills are minimal at the moment.

I know some of you live and breath photoshop, so I hope this isn't asking much.

<img src="http://images12.fotki.com/v241/photos/7/769405/2822587/IMG_0107-vi.jpg">

Far from perfect but hope you get the idea.

<img src="http://personal.inet.fi/private/petri/shirt.jpg">