Now I do find it very weird that "marcoie.com" is on no.1 spot for search "audience33" in google, because I can't figure out what that site has on common with that keyword. Then again, I dont know what "audience33" means (its not really a word, even if you remove the number), and google works in mysterious ways ...
However, there are certainly ways to get your site higher in that ranking - I currently found your site on page 2.
# The most important issue you need to deal with, is to go to admin -> settings and change your Site Title from "imagevue Gallery" to "Audience33" or anything similar with that phrase in it. TITLE is the most important factor for google, and you are using a generic imagevue term.
# Additionally, you could go to imagevue/templates/index.gallery.phtml and edit some of the text inside the <div id="na"> tag ... Add some text about your site, including the phrase "audience33". This will compliment the above.
# There are some other issues with your site that may be affecting the way google perceives it: #1 You are using a FORWARD on the entry page - This forward the user away from the startpage to the gallery page. At best, google will not index any data from the original splash-page, including title. #2 I tried to access your domain here
http://audience33.com/ , but it says page not found and only works if you add "www". This is kinda weird, especially since the page has a good pagerank but no content. Not sure if this affects google in any way, but I would be suspicious ...