1. I don't believe in the type of Hell you are referring to. C.S. Lewsis said that ultimately there are two types of people; Those who say to God "Thy will be done" and those to whom God says "Thy will be done." People who are in hell are there because they set the wisdom of God at naught and followed thir own counsel. My religion believes that people go to one of three kingdoms after judgement - even the lowest of which is vastly superior to the earth that we live on (which is actually subject to Satan in other words yes we are currently in Hell.)
There are actually a very few that will go to a place worse than here - those with a full knowledge that Jesus is Christ and deny it. In other words, very few people are ever even capable of committing this sin.
Anyway the short answer is there will be no reason to mourn those not where I am because they will be living in exactly the place and condition that they are happiest in. They will not be with God because they don't WANT to be with God they want...well obviously it varies from person to person.
2. I'd need an example, I would likely say I do not believe the scripture you quote to be the infallible word of God.
3. Although Adam and Eve did not know good from evil, they did understand obedience/disobedience and consequences. Also, punish may not really be the right word as again I think that consequence is more accurate. If you tell a child not to cross the road, are you then punishing the child when they are hit by a car?
4. My religion believes in baptism in behalf of the dead. We believe that those who had no opportunity to hear the gospel in this life will have that opportunity presented to them in the afterlife. If they accept the gospel, then the proxy baptism done in their behalf is in effect. After Jesus' resurrection, He said that He had been preaching to the spirits in prison.
5. We believe that the words Infinite and Eternal are names of God. Thus infinite and eternal punishment means, in this case, God's punishment, not unending punishment. Likewise we believe the gift of eternallife means the gift of living the same type of life that God lives (which in this case IS also unending as God's life is unending.)
6. God's omniscience and free will are not mutually exclusive. yes God knows in advance every choice that we will make. But that does not mean that God imposes His will upon us to make those decisions, only that He knows us so intimately that He knows the choice in advance. C.S. Lewsi was once asked that if that were the case, what is the point of life, why did God not just sort us out according to all of the choices that we WOULD make and punish/reward us accordingly? C.S. Lewis responded that knowing that putting dough in an oven at such and such a temperature would make bread did not remove the necessity of putting the dough in the oven if you wanted bread made. In other words, something is done in the process of making these choices, something that God would not do just by "waving His magic wand". So yes He knows already where we will all end up, but we still have to walk the path to get there. And I am sure that I didn;t word it as well as C.S. Lewis, I will try to find the book and anecdote and include it later.
7. I think your analogy is off. I think the truth is saying you have the freedom to say whatever you want, but if you exercise your freedom of speech by walking up to a 250 lb. drunk bodybuilder and telling him he is ugly and his mom is good in bed you will be punished with a bloody nose or worse.
A quote that comes to mind is that we are not so much punished for our sins as we are by our sins. For instance take a child molester...imagine what it would be like to live for eternity knowing what you had done? That is hell. It is not the devil sticking at you with a pitchfork it is an awareness of the consequences of your actions with a fully awakened sense of conscience.
I also believe that people are only punished (or suffer guilt for) things that they were aware were wrong. I believe that an atheist who honestly has sought to find out if there is a God and for whatever reason has not been given a witness - well I would say in his case that if he was trying to dissuade a believer from believing because he thought they had been deceived - and thus was doing him a favor - I cannot imagine that he would be punished for that. However, i don't think that is true for someone who refuses to believe because he knows the changes that would require him or her to make in their own lives. I think many of these people either know better or at one point did know better and talked themselves out of believing. I do believe that these people will be held responsible for any that they lead away from belief. That's one of those situations that "only they and god know what is in ther heart", and I am sure there are as many shades of grey as their are people.
Sorry this is kind of laymanish. It's what I believe, and I jsut felt like answering because as I read your questions I felt like I could answer them. I am sure many of them fall short of satisfying you, but as I said they are sufficient for myself.