how to texture a head model using exsiting images? Im pretty new with blender, and desperate with failing again and again with what Im trying to do. I hope this question is not a duplicate and can use others as well:

I've created a model using a scanner and imported it into blender.
I have side and front photos of the man scanned.
My goal is to texture the head using the photos, creating a high detailed photo-realistic texture that can be UV-unmapped and printed as one or two unwrapped photo islands.

I've watched a few tutorials using a range of tools like bprojection, project painting, cloning etc., but for some reason I couldn't follow them and succeed- every time the process went wrong followed by horrific results esthetically. I've read that bprojection is replaced by a tool called stencil brush but I couldn't find it.
The web offers so many tools that doesn't work for me!

To make a long story short, what is the best way to create a photo realistic texture for the head?
thank you!
Try this: https://www.youtube.com/watch?v=KoiYMx2xXGA

A few suggestions (since you are new): While in object mode on the Tools Shelf (open with T key) select  Smooth under Shading. I'm assuming you don't want flat shading for a head :).

For hair I recommend Particle System based solution, if the model isn't being created for a game.

If you use your picture for hair it will probably look like these old 3d models in Playstation 2 , remember the flatness?

But there are some techniques for hair that are pretty good although made with pictures.

For any questions, don't hesitate to ask.