Amendments needed to existing iPhone app

I have an existing iPhone app which I require some amendments making to. The current freelancer we have been using has gone missing. The successful freelancer will have a great knowledge of building iOS apps, and a great attention to detail. Our app is this one - [login to view URL], and if you download it you will see its not a very complicated app, so these amends are very easy. Amendments: - 3 new buttons & screens adding, with simple text and links in each of them - Some minor text amends on existing screens - Some minor graphical amends to a couple of icons/buttons. - Change the current AdMob code to use iAds code, but still keep AdMob as a fallback (in case iAds cant fill the impressions) - For the new buttons on the homescreen,we want the advert to always stays at the bottom, with the user simply scrolling to see the extra buttons. We want someone we can work with on a long-term basis, and someone who communicates regularly. Thanks, Chris.