Changing adsence advert referral codein Wordpress

Hi,

Simple question that I'm sure I can figure out but it's also easy to ask and may save me searching.

I asked someone to install a Wordpress blog with Adsense for me before I had an Adsense account, but now I've got one and need to chance the installed ads to my ads - what is the file, or the easiest way, to change them please?

Will continue looking in the mean time

 

Change the pub-id in the template.
If the ads are not in the template, it will take some time

 

Cheers,

would that be under Presentation - Theme editor?

 

Sorted ta