Hi Dewey,
You can click on the link below, it will show you the recommend sponsor page...
http://fineartamerica.com/controlpanel/index.html?tab=searchenginesponsorship
Click on the artwork page that you want to sponsor, scroll down to the third row of that page and click on "sponsor this page".
The pop up window will show you the three steps to submit the form.
In step 1, you copy the code (in yellow box) and paste onto your website, for eg, your blog...
In step 2, type in the url of the page (eg, your blog post url) where you have just paste the link.
Press Submit, that's it!
Hope that answer your question :)