Sorry, I misinterpreted something about versions earlier and made an incorrect assumption in one of my earlier comments.

If you're stuck with PHP 4, your temporary workaround can be found here: http://www.zen-cart.com/forum/showpo...23&postcount=5

But you really should be upgrading to PHP 5 if at all possible, since PHP4 isn't even supported by the PHP authors anymore and won't receive any security updates.