I'm including a link that will give you the information you're looking for. If you're looking for blooms to have at Christmas, I do believe you've missed the date to begin putting them to bed, so to speak... but do not despair... there is always next season.

I, personally, don't force a dormancy on any of my bulbs... I grow them as houseplants, and they usually bloom for me in early spring. This is their natural bloom cycle.

If you simply want some color for the upcoming Holidays, bulb kits are cheap enough at the larger stores, such as WalMart, Lowe's, Home Depot... or any store or garden center of that type.

I wish you luck with your bulbs... if you have further questions, we're happy to help. :-)

Here is a link that might be useful: How To Make Your Amaryllis Bloom Again