Help: Google Adwords conversion tracking

[Platinumwealth.co.za]

Hello guys, I hope someone can help me, I'm not a adwords guru. 

I created some Google ads for my forum the ads performs well in terms of clicks I am getting, but I'd like to setup conversation tracking in adwords instead as that will enable me to adjust my billing more accurately to pay per converted member. 

The question is, how does one setup a successful member registration as a conversion on Google ads? 

 

(hoping some of you are experienced with running ad campaigns for your IPs sites.) 

[Platinumwealth.co.za]

@mods can you move this topic to the client lounge I think it would be more relevant there?