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hmm.. well, you're gonna have to widen the parameters. change vcount to 50-7F and timer0 to B00-DFF. change gxstat to 0-F(yes, smaller) and vframe to 0-F(yes, smaller) and search with those.
i would leave that alone for now. basically, if you hit any keys before the first "the pokemon company" logo comes up, you will get different seeds. a variable in the encryption will change.