iphone application

I want an application that will be devided into 4 screens The main goal of the application is to inform users about the upcoming events of our group. We want this application to have upcoming event screen (more info bellow), past events list with more details page, slideshow with images and another screen with the sponsors we have. 1st screen. In this screen we will have a loading image. When the application will check and do the updates needed it will load a button to move on. When you click the button a sound is played and then we load a tab bar screen. In the tab bar we have the next 4 screens we need. 2nd screen. Upcoming event screen. Here we have a countdown timer in days,hours,mins and secs we also display a small text and we have 2 buttons. the 1st button loads a screen with the event location. and the 2nd button display a form in order to type some text and submit it to the server. (we also want to keep record that this user will join the event so we should not display this form until the upcoming event changes) 3rd screen Past events screen. Here we want something like the appStore application a list with events and more details page (Just like the details of the applications with images at the bottom) 4th screen Slideshow gallery we want in this screen user to rotate the phone in order for the slideshow to be activated. And we want user to be able to navigate by flipping the images just like the gallery application on the iphones. And we want the data to be taken from the server (the names and the location of the images will be in the plist when the application first init) 5th screen sponsors and contact form list. in this screen we want to have a list. the first cell we will have an image with the contact information of our group and beside that we will display all the sponsors that we have (logos taken from online) I want the source code delivered. I also want the code to be good and clean and with comments.