what is the template after registration is complete called?

[محروم.كوم]

I want to add something to the page that confirms registration complete like this:

Quote:
Thank you, xxxx. Your registration is now complete.

You may now proceed to edit your Profile in order to fill in additional personal details about yourself, or you could modify your Options to customize your browsing experience of this site. If you would rather do these things later, you can do so by following the links around the site to your User Control Panel.

Alternatively, you can simply go back to the Forums and start posting in threads.
But I can't find the template page to edit. Can anyone tell me what it's called? __DEFINE_LIKE_SHARE__