App Android

We did an app for our Android [login to view URL] App is a multimedia enciclopedia with videos and [login to view URL] was studied to work with Android version 2.3.4 and now we need to upgrade it to Android [login to view URL] we did show that video and animations they work quite well but sometimes [login to view URL] the problem is to adapt the app to work with the new versions of Android SO. I really dont know the kind of job it is coz i dont know how much you have to change the architecture of the software. Please apply only if really interested and able to do it