Go to
http://www.eliteskills.com/writing_scams/poetry.com.scam.php
for more info.
It also gives a list of other famous writer scams.
Don't feel bad. I submitted. Hell, it was free and they give you that letter to show off to gullible women who like poets. So far no proof that these women exist though.
My suggestion: Hurry up and delete your poem here and resubmit it sans comments.