2013 63 Skoda Octavia 1.2 TSi S

This car has been sourced by a broker for me.

I've paid the deposit and they will check it, inspect it and service it if required and then deliver it too me next week.

I have the reg number as well.

How can I tell if it's a mk2 or mk3? Is it ok to post the reg number here publicly?

How can I find out more info about the car and it's history?

It's done 109,000 miles. 

I'm new to car ownership here in the UK. 

Thanks folks!