instread of
PHP Code:
                    <textarea align="center" name="textarea" cols="70" rows="13">
                        <? echo $text; ?>
                    </textarea>
try
PHP Code:
                    <textarea align="center" name="textarea" cols="70" rows="13"><? echo $text; ?></textarea>
Because you have indented your HTML (which is good) you have added in the space on the intentation to the text of the textarea.