Soul Silver help

I´ve beaten leader Pryce, got the 7th badge and recived the call from Elm (i think)
When i try to climb the Radio Station on Goldenrod city theres a rocket member blocking the stairs and now i dont know what to doCan someone help me? And sorry for my horrible english

go underground in goldenrod and talk to a team rocket. hes a fake that will give you clothing to make you look like team rocket.