hi friends can't conect to itunes store i thinks this problem is in Afghanistan we don't have app store in Afghanistan i mean i am going ro downloading app from store it shows to this error?? cannot conect to itunes store

You need to be in a country, and have a billing address in that country on your account, to use its store - until if/when Apple open an iTunes store in Afghanistan then you won't be able to download any content from iTunes.

You need to be in a country to use its store, maybe what you've been doing has been found out. All store's have the following terms e.g for the US store :

The iTunes Service is available to you only in the United States, its territories, and possessions. You agree not to use or attempt to use the iTunes Service from outside these locations. Apple may use technologies to verify your compliance.