Plugin / Hook not working?

[Alan1]

Ok that is fine with the echo bit then.

What I really want to do is change the logo header on the bulletin board (ie. replace the vBulletin logo etc.) with an include file but I have been told I can not do a call to an include <!--#include virtual ... in the style manager header area and I have instead been told to use the hook / plugin system.

Two questions -

1. For an include file do I just use the PHP include equivalent ie. include 'test.php';
2. The include file only contains HTML code, how do I get it to just display the HTML code in the include file.