Yes, as TE's I think we do an overall poor job of getting the word out on what these theological concepts are. I think it's because we are busy repeating the easy answers to PRATTs like "if we evolved from apes, why are there still apes?".
There are many theistic evolution answers to these questions of the Garden, the Fall, Original Sin, the Flood, Jesus, the Atonement, just as there are creationist answers, depending on the person and denomination. However, Ill give you answers that youll find to at least be common, if not exclusive.
The Garden: The Garden of Eden is a metaphor for the natural world before humans became fully conscious/able to think our ancestors time as wild animals. It did not happen as a literal, single location garden, just as Ezekiels army of bones (37) is a metaphor that never happened as a literal army of zombies.
The Fall: The fall of man happened when man evolved enough mental capacity to make rational decisions, and decided to rebel against God. The consequences of alienation from God are the same. Note that a literal reading has the same issue over exactly when Adam became rational. Was it sometime during the molding process, or sometime during his existence before the fruit incident, or sometime during the his eyes were opened process, or what?
Original Sin: The Rebellion against God, which was only possible when humans evolved to be rational enough to understand that God exists. Obvoiusly, this isnt possible for an Australopithicene (which was much like a modern chimp). All humans thereafter have the ability, and therefore at least sometimes the action, of rebelling against God. Compare this obvious, deeply powerful fact with the idea that original sin is tasting magical fruit? Which sounds more like a mature and realistic theology?
A Real, Individual Adam (and Eve)
One common TE position (and the one I hold, along with literally millions of others, including whole churches) is that there WAS a literal, first person, Adam. He was a member of a community, and was the first person in the ape to human gradual change. After all, there had to be a first, if there weren't humans 5 million years ago, and there are humans today. Remember that there is variation, and that mutations are in individuals before they spread to the rest of the tribe. So as the whole community gradually evolves from ape to human, whatever arbitrary characteristic is used to define "being human", (such as some level of rationality) one individual will be the first to cross that line. Of course, all humans will be descended from him, just as they are all descended from others as well. This also means that this first rational human will of course be the first to be able to rebel against God, thus bringing Original Sin.
This Adam is not to be confused with Y Chromosome Adam, just as the first female transitional ape-human to be rational (Eve) is not to be confused with Mitochondrial Eve. Those two are scientific terms for individuals that likely lived thousands of years apart and never knew each other.
The Flood: The flood is a metaphor describing Gods sovereignty over humans and the earth, and still shows those same messages either way. It did not happen as a literal flood, just as Ezekiels army of bones is a metaphor that never happened as a literal army of zombies.
Jesus: Jesus was a real human who was both God and Man. He often spoke in parables (metaphors) while on earth, just as he did when he, as part of the trinity, inspired Genesis. Because Genesis is the word of the same God who spoke parables 2000 years ago, it should come as no surprise that he starts off the Bible speaking the parables of the creation, fall and flood.
Atonement: The Atonement of Jesus is the same in either a literalist or a modern Christians view. Jesus needed to atone for the sin of the fall, which was rebellion against God.
The geneologies in Genesis: These are figurative, like Ezekiels army of zombies. They pretty much have to be for a number of reasons not just the massive evidence of an old earth, but also internal inconsistencies, like growing a handful of people from (coat) Josephs time to the unrealistic ~2 million Jews at the Exodus.
All these are the opinions of many Bible scholars, and theologians like the Pope and many Protestant theologians, not just the opinions of laypeople.
I hope they help.
Papias