My Iphone, not able to sync it

Well when i plug my Iphone in to the laptop, then go to Itunes, my iphone does ot show up in the "devices".So i can't sync it.

Try resetting the iPhone.
Hold the power button and the home button for 10 seconds without removing your hands off.
Then it goes into DFU mode, enabling your phone to get detected by iTunes, then you can restore the phone.

Or if the problem is with your laptop, then try connecting it with another computer!