Yes, we have already done that.
<input type="hidden" name="return" id="return" value="http://www.websiteName.com/checkout_success.php" />
Also, How can we limit the shipping address to one on file with PayPal? <input type="hidden" name="address_override" id="address_override" value="0" /> or even commenting it out, still allows any address to be shipped to.