Hello,
I readed your project carefully, since I'm experienced html, css, php, javascript, mysql and wordpress programmer and developer, I know that I am exactely right person you need to chose for this job.
Little bit more about my work you can se in my portfolio or check what other employers thinked about their projects I allready did.
About your project, lets first see how you are holding banners, and I will tell you or make you solution for affiliate link. I can make you some plugin which will do this to you so you dont even need to do anything. But lets see first your website and rest of the stuff.
Be one more employer that will give me a chance to show my work, you will not regret for shure.
Please contact me so we can discuss about details of your project.
Thank you in advance.