I've answered on your other two posts also. How is your condo being marketed? Is it being marketed to the right prospects? Can a buyer who qualifies easily find your home on the internet? Have you contacted the local affordable housing department? Do they know you have an eligible property for sale?
Trulia is a great place to ask questions and is also a geat resource for buyers and sellers but in order to sell your home and connect with the right buyer, you may need more than just Trulia.