sounds like the switch is bad?
you got a continuity tester? if so check the switch, sounds like its stuck in a closed circut
you could also use a self powered test light to test or just replace switch in question
if your wiresing exactly the same as when you pulled the old one out and breaking the same tabs, it has to work, unless the switch is bad?
thats not a 3 pole switch is it? in other words is outlet controlled from more than one location?