I bought some games for my iphone and i also downloaded some free aps for my phone once i downloaded the 2.0 update for my iphone.. the problem i am having is when i try to "sync" them to my iphone i get an error saying "some of your applications were not installed on your "iphone" because you are not authorized for them on this computer" i can see the apps under the applications tab on my iphone on itunes when i plug in my phone but they wont sync up with my phone....

now this is the only computer i have ever used my iphone on or ever used my itunes account on. So im not sure what i should do to be authorized to sync them on this computer.... i have a mac book pro if that matters at all.

thanks in advance