Hi
It's not too hard, find a tutorial which deals with a confirmation page.
Basically you are just buiding up the information you have about the user. The script should be something like:
<?php
echo "<form action='dothis.php' method='get'>";
if (!isset($pageno))
{
$pageno = "1";
echo "Name: <input type='text' name='name'><br>";
}
else if ($pageno == "1")
{
$pageno = "2";
echo "Name: $name <input type='hidden' name='name' value='$name'><br>";
echo "Age: <input type='text' name='age'><br>";
}
else
{
$pageno = "3";
echo "Name: $name <input type='hidden' name='name' value='$name'><br>";
echo "Age: $age <input type='hidden' name='age' value='$age'><br>";
}
echo "<input type='submit' name='cmdGo'>";
echo "<input type='hidden' name='pageno' value='$pageno'>";
echo "</form">;
?>
Give it a whirl and then just build it up until you have the structure you need.