Well from what ohhaipatrick said you would only need i4 Invisible Unlock Tap which will give you tap to unlock but hide it. This still might not work if you have alot of things running in Winterboard. When that happens it's always good to just have whatever doesn't seem to be working as th only thing selected. So you can tell if it works or not. Then if you know it works there's something else you're using that overrides it.