this is what i got from install results:
Config file was successfully written to ../inc/header.inc.php
Warning: copy(/home/curomuto/public_html/demo/forum/layout/base_en/css/main.css) [function.copy]: failed to open stream: No such file or directory in /home/curomuto/public_html/demo/forum/classes/BxLang.php on line 174
ERROR!!! can not compile language files
-->please advise
