Once you have WordPress installed, login to your blog and you should see your Dashboard. From there, you want to look at some of the basic settings, try creating a sample post, and go from there. If you have any specific questions on how to do something, go ahead and post it.
WordPress is definitely the way to go and it’s pretty quick and easy to learn as well. If you have any specific questions on how to use it, please post them and I will try to help.