Ronda,
I agree with Eric on this. I'd go ahead and plant them where you want them. Full sun all year long isn't a necessity for trees and the first bit of growth should be into root development. Use a good clean manure
compost mixed into the dirt you pull from the hole and make sure the hole is big
enough that the
roots will fit nicely. I normally build a mound of the dirt mix in the bottom of the hole to set the tree to the correct depth in relation to the surrounding soil,
water it in good (don't make it a mudhole) when backfilling. You'll also want to make sure to tamp the top in with your foot to get good contact between the roots and the dirt. Pound some stakes in the ground to center the tree in its place in case of wind, then water it often.
Bill