Google Analytics Goal Conversions

Hi All,

Could someone please give me advice on where to put the code for Goal Conversions for Google Analytics and Adwords.

I would like to have 4 different goals.

1. When a user finishes registration.
2. When a user pays for a new plan.
3. When a user joins the newsletter
4. When a user users the contact form to contact a dealer

Cheers,
Martyn

I know how to add a goal for registration etc but I'd like to know how I can see how many visitors use the contact form to email advertisers.. any idea??