Ok I get this should be easy but for the life of me I cannot get it to work 
Can someone please give me the step by step before I go postal and headbutt my screen!
Thanks
I use a custom variable you set up under traffic source.
Looks something like this
Parameter = V1 (what you put here is what appears in tracking link eg &v1=)
Placeholder = {ad_0000} (this is what you'll change in TJ link to match your own creative id)
Name = Ad ID (This is what label will appear in your
Hope this saves helps your head & screen 
Thanks pawly, that did it. Us Melbournites gotta stick together!
My screen thanks you, too late for my head though 