Help!

My wife has lot's of Photos on her Vista computer that I want access to and can't seem to figure it out. I need step-by-step help in setting this up, please.
I want access to her photos so I can pull them over and put them in iPhoto so that we can see them in the living room on our AppleTV. I could just burn a disk... but then I would be doing that every time she shoots new pics.

I have searched several articles, but none seemed to make sense to me.

She's connected to the AEBT via ethernet and I'm wireless... though that shouldn't matter. I guess I need her workgroup name and user name and IP?
If so, I need to know where to get these items and where to plug them in.
If you know of an article that aptly describes this process... that would work for me.

Thanks.
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http://davidbearphotography.com/
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It appears that autocorrect has become my worst enema.
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