hi can someone tell me how to use the multiscan and the elm cable
where in the car do I put it and also how the hell do I get it sorted on the laptop first I got so confused lol

You can download a user guide for Multiecuscan from here:

http://www.multiecuscan.net/HowToUse.aspx

Where it plugs into the car, I answered in your other thread here:

https://www.fiatforum.com/stilo/313949-need-help-my-key-2.html
.

Easy stuff - the ELM interface plugs into a socket above the fuse board, behind the flap at the driver's right knee. It can be a faff to get it the right way up.
Connect the other end of the ELM into your lappy (USB or serial is fine, it won't make any difference to performance. Or did you buy a Bluetooth one?) and in general, all you gotta do is tell MultiECUscan which COM port the ELM is hanging off (you can just press "Scan for Interfaces" most of the time and it'll work it out) in the Settings, and then pick your car off the list and hit Connect.

thank u all for ur help I did it all I got to do now is sort my head light out lol 1 is pointing ok and for sum reason 1 is point to the sky lol