Adding Image Headers In Widget Sidebar???

Hi,

I am in the process of transfering my website from it’s current XHTML static state, to a fully built WordPress incorporated theme, that can be a platform for me in the future, I have built up the theme from scratch and am still learning, however I have hit a snag and I am struggling to get past this hurdle, my temp web address is here http://www.reeddesign.byethost3.com/wordpress/?page_id=2 – as you can see I have a certain font I have used in the header and upon the ‘Welcome’ and ‘Featured Portfolio’ Image Headers, what I am struggling to do is to incorporate this same technique in to my sidebar, I want to add an Image header above Status and Recent Posts! Simple as that, only I don’t know where to add in a div to do this, it is a widget sidebar on the home page, can anybody help me, please note I have tried adding in a div to sidebar2.php (which I made) it appeared in IE but Firefox is tempramental and I don’t seem to have real control with it.