The Extended Home Buyer Tax Credit is set to expire & those who plan to take advantage of it have 3 days to get property under contract.  You have until June 30^th to close on your new home but must have a binding written contract  in place by April 30^th 2010. 

Instructions on how to file for your tax credit in either 2010 or under certain circumstances with an amended 2009 return can be found at http://www.realtor.org/home_buyers_and_sellers/extended_home_buyer_tax_credit_how_to