There is too much involved to learn from a post on a forum.
First, you need to set up the server-side application that contains the information you want to send to the app. The most basic would be a text file you manually update. More complex would be setting up a database to track the data and users.
Then, you need to build an app that accesses this server. There is no quick answer here, unless you app has a simple WebView that loads the page on the server. If you want to manipulate and present the data in different ways, you'll need to use NSURLConnection and do some network programming.
I suggest the iPhone Developer's Cookbook. Or, read Apple's NSURLConnection documentation. Or at least google NSURLConnection and see code snippets that people post. If you are a total tech noob, this could take a while to put together (with proper error handling and whatnot).
Good luck!