Search Box on My Tickets Page Would Be Very Helpful

I am always referring to my previous tickets. Right now I need to know how to change the font size for my e-Newsletter CHAT Template, but I can't find the CSS file for it. It's not in the templates file, but I know it's somewhere because my header is there when I send a newsletter.

If I could find the old ticket where you gave me instructions for the header I'm sure I could find where to put the CSS, but I have so many tickets that it's taking me forever to find it. A search box for my tickets would be most helpful. Thanks!