CSS help needed – image replacement

Hiya,

I am trying to find out the CSS needed to keep the title for my blog (so that it shows up in searches etc) but not actually display it on my blog.I have put the title of my blog in the header image but still need a title for when it shows up in search engines or in bloglines.
I have been told that I need to

“specify a width, height, and background image on something like an <h1> element, and then also be sure to add this property: text-indent: -9999px. This will keep the actual text within the XHTML, but it will not display that text to users”

I have been looking up the different techniques and to be honest my head is buzzing with it all – anyone know of a nice simple walkthrough for a CSS newbie like myself or even better does anyone know the code that I could use ?

Alistair

ps. Oh, i am using Cutline and my blog is at

https://www.urbanflyfisher.com