as simplest as like this..
<?
echo "USER " . $txtname. $txtusername. $FIRST;
?>
<html>
<body>
<form action="welcome3.php" method=post>
<input type=text name=txtname value="">
<input type=submit>
</form>
</body>
</html>
note: it will post and sumbit to the same form. I try this at other server and it work. but not in another server. Wondering ..