The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
Geosearcher is a simple, free app which allows you to enter some coordinates to a location and get the distance and direction to the location. If you are using an iPhone 3GS or iPhone 4, it will also give you your current heading so that you can follow the line more easily. For instance, are you looking for a geocache? Store the coordinates in the list of saved coordinates and load it up when you get to where you're headed. Then, follow the heading and distance straight to the destination! This app will always be free, so please feel free to use it however you like!