Usually these sorts of questions, if they are sincere, are rooted in a sense of injustice about the idea that only those who believe in Jesus will be saved. And if this was strictly literally true, such that no one could be saved unless they had explicit knowledge of Jesus, then there would be an element of inequity there to be concerned about.
However, when Jesus talks about people being damned for not believing in Him, what He has in mind is not the damnation of those who have never heard of Him, but the damnation of those who have heard of Him, and who understand who He is, and yet still refuse to believe.
Those who have never heard of Jesus are judged based on how they respond to what they do know about God (as opposed to what they don't know).
Fundamentally, salvation (Heaven or Hell), is a matter of opening up one's heart, in humility, to truth, life, and goodness.
Those who open their hearts up in such manner are, by that action, actually opening themselves up to Christ, whether they know it or not, since Christ is the source of all humility, all truth, all life, and all goodness.
Now this doesn't mean its irrelevant whether you believe in Christ or not, but it does mean that those who never heard of Him are not by that fact necessarily damned.
