I'm rather frusterated

I have been trying to "gussy up" my blog, as one would say, but it's not working. If you look at other blogs, like Tawny's for example, she has lots of cool stuff in the margins of her blog, and is able to include pictures within the body of her text. The only way that I have found to put pictures on the blog is through Hello, but it looks better when I can just input it in the middle of my rambling. Someone help!