i have option set too user need to validate thear accounts, and the first ads. The user gets 3 mail Activate account, Activate Ads, and user Register (autoregister).
if the user dont activate the accout it will remain deactivated. How can i make with Ads activation the user account activate too whit one link ? (widtout to disable user don't need to activate account from admin) ?

@Elod
You might remove original email and modify auto-reg mail to looks like one sending confirmation as well as account creation.

How can i combine the user account and ads activation ?