Lostpassword script Error

Hi there, I need some help here. I have uploaded all the files necessary into my server. grab it at www.frozened.com/zeus/lostpassword.zip This is a lostpassword script whereby when the user inputs his email address, the script will check if his email is a valid email ( test@test.com ) after which it will use the database to search for the email and if there his email is in the db, it will send him a mail telling him so. In this script I haven't add the mail() but replaced it with a echo() so that I know that the form has been processed. When I run the script and input a 'non-valid' email address ( no @ sign ), the errormsg will appear as normal but when I type a valid email or a email that is in the database, the form will just clear it self and reappear. Mind if someone help me debug (I'm new to PHP). Thanks :) ------------------------ Zeus ------------------------