or..........you could have the php processing files in only one folder and then link to them from the form. For instance, if the form is in folder aaa and all your php processing scripts were kept in xxx then you would link to them like so:
action ="
http: //www.yoursite.com/xxx/whateverscript.php"
or
action ="/xxx/whateverscript.php"
That is if I understood you correctly.
Andy