Okay, since you say you're a total newbie I'm gonna try to explain it in pictures.
Have ready a honeycomb texture with the picture in white and the background in black.
I used this one this is a quick one and not at all perfect!)
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Open a new canvas 1000 x 1000 px in 50 % grey
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Use the cube wrap mesh
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and move the scene so you have a view
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click on the texture and in the opacity choose load texture
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open the honeycomb texture file
This works as a mask: black conceals and white reveals
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Change light and shadows at will and render.
This was a quick work to show how to...
Whoops, this was done in CC2017, but I assume it will work in CS5
Here's one fully rendered but instead of 50 % grey I used orange, with shadow and reflection:
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