 <p>There's a few bits here and there that are a little more advanced than you need to delve into right now but the most of it is basic HTML.</p> <p>You can change the templates but unfortunately the post ID has to stay ..it's built in.</p> <p>You can find more info here; <a href="http://webapps.stackexchange.com/questions/28049/changing-messy-tumblr-url">http://webapps.stackexchange.com/questions/28049/changing-messy-tumblr-url</a></p> <p>Good luck with the template.</p>