MySQL, PHP on lighttpd and redrect

i follow that:

Installing Lighttpd With PHP5 And MySQL Support On Debian Etch

and everything went ok (except restarting the lighttpd, it needs reboot).

i trying to install a Webchess and
while

10.90.0.6/webchess/index.php

run ok, the

10.90.0.6/webchess/install.php

keep redirects to piratebox.lan.

i didnt manage to cancel it, any help?

thanks

EDIT: solved changing temporally the redirect.html, webchess works great!