Check out the example banner below and the video of one being made. Remember to check out the Fireworks skills videos for help using the Fireworks tools.
To create the advertising banner, you need to use a graphics application such as Adobe Fireworks or a freeware application such as GIMP.
Below are a list of useful links with Video tutorials to get used to using Fireworks.
Also there are examples of advertising banners for you to see.