I'm a bit confused! I've got header text I can't find!

I'm sure this is standard Newbie stuff, I've installed Zen, plus the Mihluna template. And in the past I changed the header text to say 'Welcome to blah blah'. Then I changed the header image (I had to call my image header_bg.jpg in the template images folder, I couldn't get it to change otherwise)

Not I've got a title image, PLUS the welcome to blah blah text over the top of it. As hard as I search I can't find where the text is so I can remove it. It's not in the english.php page, none of the english/ files, the mihluna/common/tpl_header.php page, I don't know how to get rid of it!

Use the developers toolkit found in Admin -> Tools.

In the very last option at the bottom of the page enter the phrase you're looking for and set All Files Lookup: to Admin - Catalog. This wil give you the file you're looking to amend.

I also suggest, if you haven't done so already, to install firefox's Web Developer addon plus Firebug. You can't afford to be without them.

Nice one! I'm sure I tried that yesterday, but it returned no results! Perhaps I searched in the wrong box! Found it now, that's great!
I shall have a look for Firebug now, I use Firefox as my main browser.