Maybe you just forgot to press 6 to activate texturing.
Or, it may be just a bug, so if you restart maya it might work.
Or...., I notice that a lot of peolple drag textures incorrectly from the hypershade window, so make sure you did it right. Hold ur middle mouse key and drag to ur shape.
Lastly, your computer may not be strong enough to view huge figures and the textures may be messed up.
I dunno, just tryin to help out. Hope this info helps.
"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man."
George Bernard Shaw - Man and Superman