Need to hide Post information

[rbjb]

I have a message board that is using a much modified version of the Matt Wright script of old. The problem is the spammers are hitting it because the Post information is in the open and I need to hid this information. Does anyone know how to do this. Below is the post code.

<form method=POST action="http://www.wyz.com/cgi-bin/wyzboard.pl">


Ray