Well, in 99% of Civ4 games, you should be looking to capture a neighboring capital ASAP. Geezers might have been able to do this if there had been horses near the starting position. Xteam sort of lucked out that not only was there copper in our BFC, but it was next to a river so that we didn't even need to research the Wheel to use it.
In hindsight, your choice of capital location was unfortunate because the copper was not in the BFC. But this was just bad luck. The one decision I would question though is going for Hunting and Archery after you got Animal Husbandry. Archers are very passive units. Axemen are better than archers for actively defending against the AI, and obviously better for taking cities. If your team asks itself, "How can we win this game faster than all of the other teams?" instead of, "How can we survive and eventually win this game?" you'd actually make decisions that made you more likely to acheive victory. You should be actively seeking to make some game breaking play, or as Murky Waters calls it, a "power move". For us and MW, that was taking Timbuktu early. For Short Straw, that was Oracling Machinery. There's really no way to make a power move with archers.