I am having trouble understanding the contrasting definitions that separate the West and the East on matters of Adam's sin. I have read up on Original Sin as defined by the West but I can't find any solid sources to read up on in regards to Ancestral Sin.
John Romanides' The Ancestral Sin
is still in print and is considered by many to be a good resource.
A couple of excerpts from His Eminence, Metropolitan Kallistos Ware on the topic can be found here: http://groups.yahoo.com/group/arbible/message/34424
I have found that the East refutes any idea that Adam's sin transmits his guilt, however I am not sure what the Orthodox mean in detail when they say "guilt".
We mean it in a very straightforward way: the moral responsibility/culpability for a sinful act. Orthodox do not believe that Adam in any way transmitted to us the moral responsibility/culpability for his sinful act.
As far as I could find, and insofar as I vaguely understand, the Orthodox stress that human death and concupiscence are the the effects that are transmitted with Adam's sin, the death of the spirit is a product of each individual's personal sins.
Without getting into the weeds of anthropology here, the death that human nature inherits affects the entire person, not just this or that aspect of him. Since only in God is the principle of life and nothing lives apart from God, God wills to keep our souls alive after physical death, either in a state of well-being ("heaven") or in a state of ill-being ("hell"), the choice of which destiny is ours.
The principle of mortality affects (and infects) all of who we are: our bodies so that our desires are distorted ("bent"), our wills so that we incline toward choosing that which is death-giving (i.e., sin), and our judgements (or deliberations) so that we do not adequately or accurately choose the good, even though the good is stamped on our conscience (i.e., we either deliberately choose evil, or, more likely, we choose that which only appears to us to be good, but we fail to discern that it is really evil).
Baptism resolves the issue of death and mortality, putting to death the principle of death in us such that we are no longer subject to its power.
We are, of course, responsible for the personal sins we commit, and baptism cleanses us of this moral guilt as well.