Here is a link to the polish forum about adoption. If you know polish you can read it.
Nasz Bocian - Strony o Rodzinie - Forum
When I was reading this forum I learned that the waiting line for a healthy infant (not a newborn) is 2-3 years. This made me decide that if I want to adopt from Poland I need to accept the age of the children which are available there. Also on the forum they have link to the 3 adoption centers which are in charge of all adoptions. You can call and ask them more questions.