New version of iTunes! IPhone does not appear

Okay so my iPhone is locked and my little sis tried the password a bunch of times till she unable it. So the only way of course to fix it is to connect to iTunes. I went and downloaded the new version of iTunes into my computer.looked for the iPhone settings and won't see it all I see is library and iTunes. The iPhone does not appear at all!
So is there any suggestions?

Added (1). I plugged it in and it says itunes could not connect your iphone because it is locked enter you passcode and what i'm trying to do is open it through itunes

On the top below the player on the right hand corner it will say iPhone when your phone is plugged in so click that

It appears in the top right corner these days. If it's not there reboot the device and your computer… If this doesn't work try downloading an older version of iTunes. Sorry I couldn't help more. No sleep you see…

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