Already owned website done in iWeb

I already have a wordpress website, http://www.theconradagency.com. i have another website that was created in iWeb on the mac thecolorblindphotographer.net. I want to keep thecolorblindphotographer.net but completely redo it using wordpress. i am an absolute beginner with wordpress (someone created my other wordpress site for me) and need to know where there is a tutorial that will show me how to setup wordpress to use my existing thecolorblindphotographer.net address. from there i will try to learn it on my own.