Uhm... why are you closing forms that aren't even open, and/or what forms are those input part of?!?
Much less is that tables for layout? Why aren't you using the LABEL tag? Bad, just bad.
IF there are no other form tags on the page, you need to get rid of EVERY SINGLE ONE of those <form></form> tags inside the table, and move the <form> tag BEFORE the table. As it sits right now, when you hit 'submit' the only thing being submitted for a value is $_POST['submit'] which won't even have a value. ... and I'm wondering why you're using a BUTTON for that... basically it looks like you have six separate forms on a page that should have only one.
... and you REALLY should learn some more HTML since it looks like you have no business even using a table there, and you're missing half the tags you should have in a form like LABEL, FIELDSET, LEGEND, INPUT[submit]...