the first "if" can be replaced with the following:


location ^.+\.php$ {
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root/vbseo.php;
fastcgi_pass ....; # your fastcgi handler
}

not sure that the second "if" is needed, unless they meant to handle all non-existing files (404 errors) with vbseo.php. this can be done with the following:

location / {
error_page 404 = /vbseo.php;
}

Andrejs