In new episodes of Star Wars (specifically Ep.II Attack of the Clones) there were clones that was created from Jango Fett, including Boba Fett, so does it mean that in the original episodes (IV to VI) all Storm Troopers are the same clones, and they all look like Boba Fett?
No, the original clone army consisted of clones of Jango Fett, but as the Stormtrooper Corps was built from that original, clones of different people and even just normal born humans were allowed to join the Corps.
For more information see the Star Wars Wiki.
Some Stormtroopers were conscripted from worlds which the Empire acquired through connquest. They trained at the Imperial Academy on Corida.
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