FCKEditor Installation

I’m trying to install the FckEditor plugin for WordPress 2.6. I’m getting the following error when trying to activate:

Warning: require_once(D:\clnts\www.mysite.com\blog\wp-content\plugins/../../../wp-config.php) [function.require-once]: failed to open stream: No such file or directory in D:\clnts\www.mysite.com\blog\wp-content\plugins\deans_fckeditor_class.php on line 20

Fatal error: require_once() [function.require]: Failed opening required ‘D:\clnts\www.mysite.com\blog\wp-content\plugins/../../../wp-config.php’ (include_path=’.;c:\php\includes’) in D:\clnts\www.mysite.com\blog\wp-content\plugins\deans_fckeditor_class.php on line 20

Any help will be appreciated.

Thanks.