template trouble

Checking back its been 9 years since I started blogging and I'd customised my old template lots - colours, sidebars etc. Liked it and was used to it. But recently there were some hitches. Blogger also changed its user interface making it almost impossible to fix the comments issue without first changing to a new 'dynamic' template. Which basically means they have control not me. I can't figure out how to give the header a subheading which would allow me to make a londoners life back into times italic and smaller than the overall heading. So it looks rather heavy and clunky now. Not at all like it was intended in the beginning to emulate the Guardian. Anyway, maybe I'll learn how or someone will point me in the direction I need to go to try to make changes to the html/css of the template or maybe I'm stuck with it (self taught on the html/css front so its a bit tricky when making changes). Also can't figure out how to get a slide show to work on the header so the little javascript I had above the heading is also gone. One of my fav bits. Its all so much less controlable and therefore less creative. boo hiss.