Help plz

i have a problem
i did the email php tutorial exactly how it is done, i upload my files and test it out and the mail is sent through but the browser doesnt say the next part where it says thanktou and the go back button
it jus stays there forever with the text still in the textboxes but the mail is sent. can any1 tell me what i need to do plz

look at what i mean this is a site that is currently being made send mail on either the contact us orders or email sign up to see what im talking about.

i jus edited the php file from the tutorial and in that file it said
PHP 4.1.0+ version of email script.