A while back we had a thread where there was a question ( and much talk ) about Acts 2. Things never seemed to get anywhere. E.C. Moore covers this in a few videos. I hope that all those who took part in that thread will take time to hear him.
http://www.youtube.com/watch?v=KtDkmq0FoDQ&feature=related
http://www.youtube.com/watch?v=fvRMqtlxSek&feature=related
http://www.youtube.com/watch?v=Wies0Lv97cQ&feature=related
Sorry everyone. I have no idea how I messed up on that link. I hope I have it right now.

Thanks for your post Huw, But I fear your not getting what E.C. is saying. He is not saying those people are LOST. He is saying they are not saved as people of today are. When we are saved today, Our sin is covered by the blood of Christ. Its a done deal. But read the following from Acts. And take note that the person that wrote Acts KNEW Jesus had been here. Once.
Act 3:19 Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord;
Act 3:20 And he shall send Jesus Christ, which before was preached unto you:
Act 3:21 Whom the heaven must receive until the times of restitution of all things, which God hath spoken by the mouth of all his holy prophets since the world began.
I hope you will take time to go back and hear what he (E.C. Moore) has to say. I think you will find he stays with the Word.
Thanks