How do I add other stuff to my site? logos links

I used the phpbb instant forum thing on my site, I have that now. Now I want to make banners and other things on my site at the top and sides of the forum. How do I do this? Please help. My site is
I want to be able to add like a site logo, banners, maybe other links at the top etc, just like other websites. This is a good example:

Please help, thanks.

you will need to edit the templates. Some of the stuff can be edited directly in the control panel, other stuff you will have to edit the template files to change. You should look around on the phpbb website for a tutorial on how to do this.