WordPress MU

I put a header on my theme but when people create a blog does not appear.
For example:
http://energyenhancement.org/Spiritual-Blogs/
in this direction appears and
http://energyenhancement.org/Spiritual-Blogs/blablabla
and in this no.

If the theme has a Custom Header Option, it only applies to that blog.

If you want it on all blogs, you have to hardcode it in the theme.

I don't have a Custom Header Option.
I only put the header in the header.php file.
What I have to do to have it in all the blogs?

So in what file I have to add the code?
And which is the code?

Please help.

What file did you add the image header to originally?

I add to the header.php this:

<img src="email_header.jpg" width="100%" height="250" />

You're missing the FULL PATH to the image.

ah, you are right Andrea.
Thank you again.