[Plugin: WP phpBB Bridge] After installation, WP-Admin redirects to my forums

[syntheticmind]

After installing this plugin, My WP-ADMIN directory redirects to my forums, and my main page (http://fullclipgaming.com) does not show any of the posts / pages. When I visit the deactivate link, it says that the plugin has been disabled, however my web site is still inaccessible. This has essentially broken my website.

Is there anything I can do to deactivate, or reverse the installation of this plugin and try again?

thanks,
Matt

http://ww.wp.xz.cn/extend/plugins/wp-phpbb-bridge/