I think he means a interface between the userbase of Invision and WordPress – and although this is possible, it is devilishly hard and there is no way I am going to try it. For anybody who *DOES* want to try, I would suggest tying the User Group in Invision and correlate it to the user rank in WordPress (whatever its called) and use the Invision system as the main one, instead of combining the info for the two. Also possible would be to use the IPB SDK (google it) and modify the wp-Login.php to authenticate them with Invision at the same time as WordPress – this, however, would require you to modify the Invision files to point to the wp-login file instead of the Invision index.php?act=login&code=01… yah way to much work for so litle benefit. Easier would be to have the comments disabled, and auto-post an invision post in the news section when you make a WP post, and have the comments lead to that post so they can reply there.