Include_path works w/CGI on yoda not nimitz

I understand that php_value include_path in .htaccess files is not supposed to work at all on servers using CGI PHP, and that only servers using the Apache module obey this directive. Nevertheless, I’m using CGI PHP (both PHP4 and PHP5 on different sites) on yoda with php_value include_path in .htaccess files. The same setup doesn’t work on nimitz (as one might expect). What can I do to make nimitz work like yoda!?

I noticed yoda’s PHP (and PHP5) has the Zend Extension Manager and Zend Optimizer. Is this the difference?