Put them in a cool light place and the shoots will soon green up. Make sure the compost is damp but not soggy. When the shoots turn green and the flower heads start to appear place them in whichever room you want them in. They should be fine.
I would still plant them with the shoots below the soil- in fact I have done just last week in a big pot and they are already showing up through the soil! They will soon grow some roots once they are in the ground/soil. If you leave them till next year the bulbs might just shrivel up and be useless. Take a chance on getting some pretty blooms n a couple of months time.
I sent off for some in a pot to have indoors and they arrived a few days ago. The shoots (about 2cm) are yellow and there is not much in the way of roots. Should I keep them in the dark for a while? Have I missed the boat with them for this year?