select the face and then apply a planar projection to that one face. Then apply yoru shader with the texture to that one face not the whole sphere. That will do it.
But if you only texture one face it will probably look crap. What Ponmy said makes sense. Create a texture that will cover the whole sphere and then paint the piece of information that you want in the right place. But then I dont know what you want to achieve so....
Alan
Technical Director - Framestore
Currently working on: Your Highness
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