Tritricia45

Does anyone have a minute to inform me on how to install my new extended mag release? I have Wilson 1911, .45. Took off grips, unscrewed old mag release, took it out. Took spring & screw from old one, inserted into new one. Popped it in, screwed it tightly, then used allen key to put "pedal" on. Only prob now is, it doesn't function! Just when you thought you had a chance at being a gun-smith....Any ideas? Much appreciated.