Having just planted fifty odd fruit trees (although I have no idea how well they'll do).... dig a hole that is bigger and deeper than the root system that is there -. must make sure the roots are well spread out. Back fill some of the hole with a mixture of well rotted manure and earth, along with a couple of handfuls of bonemeal or similar. Rest the tree in the hole and work out where the stake is going to go. It should be on the windward side and goes close to the trunk i.e. the roots are arranged around it rather than putting in the stake later after you've filled the hole. Then backfill the hole, stamping down the earth except for the last layer. Use a tree tie or stocking (if you have one to hand

) tied in a figure of eight around the trunk of the tree and the stake so there's no chance of the trunk rubbing on the stake. Clear the ground of all other plants for about a metre in each direction (less relevant now but vital if water becomes shorter in supply in the summer). And if you have rabbits around, cut a piece of chicken wire to surround the tree and staple it to the stake. Oh, and prune now if it hasn't already been pruned this winter.
'They' say you shouldn't be planting if the ground is frosted or it's so wet, the mud is sticking to your boots. 'I' say my bare root trees would still be sitting, waiting to be planted two months later if I'd stuck to this. But our ground is sooo wet today, I would give it a day or two. If you dig a hole and it fills with water, that is too wet (one of our holes turned into a pond which is still there).
H