Re: super beginner :)
Yeah. So, pick a theme close to what you like and edit it. What else did you want to know?
Open the theme file for the page you want to edit. Look for the bits you want to change. Change them. For example, to get rid of the tags you go to front-page.php and take out the entire div for hot tags. To put the forums above the latest, look for the block of HTML that’s there for the forums and move it above the block there for the latest. For the header you play around with the CSS.
I can’t see that you need a little help. I don’t know what help you need at all. Do you have any specific problems? It’s rather annoying that you’re asking for other people to spend their time explaining how to do these things when you don’t seem to have even tried.