装过apache+php的大侠请看过来

我装了个apache1.3.26+php4.2.2+mysql3.22.21

都在缺省目录下 /usr/local

phpinfo()

phpmyadmin 也能正常使用

但在安装vbb时 老是出这一句,每个.php都是这样

Warning: Failed opening '/usr/local/apache/htdocs/admin/install.php' for inclusion (include_path='.:/usr/local/lib/php') in Unknown on line 0

为什么呢