How To Make The Header Image To A Link

Do you want to make the whole Header a Link?

Yes

I have a logo in the middle so I cannot use the ordinary text to link from since it covers the logo.

Hi,

You can get the solution via below mentioned link:

Designing Headers

I think you can do this via css. open your style css and modify /add the following selectors:

div #headerimg h1 {
	padding: 0;
}
div #headerimg h1 a {
	display: block;
	padding-top: 70px;
	height: 140px;
}
#headerimg div.description {
	position: absolute;
	top: 130px;
	text-align: center;
	width: 740px;
}

oh sorry, i didint read your 3rd post …

open the header.php of the default theme and change:

<div id="header">
	<div id="headerimg">
		<a href="<?php echo get_option('home'); ?>/"><h1><?php bloginfo('name'); ?></h1>
		<div class="description"><?php bloginfo('description'); ?></div></a>
	</div>
</div>

to

<div id="header">
	<div id="headerimg">
		<a href="<?php echo get_option('home'); ?>/">&nbsp;</a>
	</div>
</div>

add to your style.css:

div#headerimg a {
	display: block;
	height: 140px;
}