a little information plz
 

I am looking at putting a button in the header E-mail to friend where it e-mails the page to any friend is this possible

Could you please be explain this a little better? I don't quite understand what you're looking for.

Do you just want to add a new button to go to the Email this page page?

yes on every page so it would have to be in the header

The feature is only available for threads, so I'll show you how to add it to the top of every thread.
[list=1][*]Open up the showthread template.[*]Find the first one of the following piece of code (there are 2 in the template).
[*]Before that, add the following:
[/list=1]

It will then show up to the left of Last Thread Next Thread at the top-right corner of the first post.

Hope that helps!