In regards to Essups great description to watering, I would like add a little more. After soaking the ground with a slow watering, let the ground dry out before watering again. This lets the tree get used to dry spells and forces the roots to expand in looking for water. You may not want to go to long between watering when first transplanted, but eventually it needs conditioning.
My experience with trees that have major taproots that go straight down is don't mess with moving. I tried to plant some in containers and then move them, but they always seems to be WAY behind in normal growth when compared to the same thing planted "in place". Perhaps in a pot to just get the seed to "pop", but get it planted in place as soon as the weather permits.
