PhpBB3 BBCodes

Hi,
I have my phpbb3 forum in "/forum" folder and in the root of the website I have WordPress.
I installed this interesting mod, but when I try to get a 404 error (or other types of errors of this mod) I get the error page of WordPress and not of PhpBB...
What can I do?
Sorry for my bad English

Hello Marco,
Im not sure how wordpress error pages works. But if you have defined error pages in a htaccess file located at the root (wordpress) it will overrule the one in the forum folder which is the one edited by this mod.

Hello,
I tried to modify the htaccess file in the root (WordPress) and in PhpBB folder but it doesn't change.
My forum is SEO premod, but I think that it will be not a problem.
Can I post here my 2 htaccess file?
EDIT: now it works Thanks!