Possible Duplicate:
What is the fate of someone who died never hearing of Islam?
Allah says :
ومن يبتغ غير الإسلام دينا فلن يقبل منه وهو في الآخرة من الخاسرين
And whoever desires other than Islam as religion - never will it be accepted from him, and he, in the Hereafter, will be among the losers.
But also Allah says :
من اهتدى فإنما يهتدي لنفسه ومن ضل فإنما يضل عليها ولا تزر وازرة وزر أخرى وما كنا معذبين حتى نبعث رسولا
Whoever is guided is only guided for [the benefit of] his soul. And whoever errs only errs against it. And no bearer of burdens will bear the burden of another. And never would We punish until We sent a messenger.
So if someone haven't heared of Islam.. Whether he/she is Christian or a Jew or an atheist or otherwise.. Does she/he enter the hell..?
And what about who heard about Islam, but in a distorted manner ?