Then you will have to manually add them to whatever theme you are using. If you don’t know HTML and CSS this might be a little tough.
If you post a link to your blog I will take a look and see how hard it will be. It mostly depends on what theme you are using. It could be easy or it could be hard. On mine it would be hard since mine uses a single column layout. If yours has a sidebar it shouldn’t be that bad to stick them in.