Lucas didn't make the comment in an interview, this was in a set diary available on the official site's Hyperspace. He also comments on this in the Attack of the Clones DVD commentary, on how Boba was originally concieved as a sort of rogue Stormtrooper and later evolved into the son of the original clone. In this commentary they make it painfully clear for even the most resolute proponent of the "recruit" Stormtroopers that the clones are stormtroopers. Period. The troopers seen in the original trilogy are simply cloned from some other, non-Jango donor.
As for the "fanfics," I was referring to your (please note how "your" is spelled) attempts to justify your belief in the recruited Stormtrooper legions. Unless you somehow believe your theories override the opinion of the freakin' writer.