WordPress Tip#2: Header
It turns out that the left menu item labeled “Appearance” holds some of the most important tools in WordPress. In fact, if you don’t change the appearance of your blog, it’s pretty much going to remain a generic Theme.
Change the picture on your Header with the following steps. Click on Header, then Browse. This let’s you look through your home computer files to find a new photo. Don’t worry what photo you use, but if it’s a photo of you, it probably should be wearing clothes. You will the have an opportunity to select a portion of the photo to paste into the Header. Go ahead and try it. If you are using Theme Twenty Ten, you now will want to find a horizon-type shot that includes a section that is looong and not too tall. Bonus Tip: Remember how you changed your Header: Dashboard->Appearance->Header. I forgot how I did it and had a devil of a time changing it.