...
<form action="&mvt:global:sessionurl;" method="post">
<input type="hidden" name="Action" value="GD_WREVIEW" />
<input type="hidden" name="GD_Ratings:product_review:product_id" value="&mvt:gd_ratings:product:id;" />
<input type="hidden" name="Screen" value="REVIEW_SUCCESS" />
...