Redirect to post | Peter's Login Redirect | Forum

hi first of all thanks for such a great plugin , my problem is that when i redirect any specific user such as 'Editor' it redirects perfectly but if any user having role of 'editor' need to comment on any post after login redirect back to that post it is redirected to the page i redirected it previously,i need to redirect specific role user to specific page when he log in like "wp-login" not when he needs to comment on any post ,is their any way to solve this problem using this plugin for e.g when any user having role of 'editor' login it is redirected to http://www.example.com/?p=7 but when that user login to comment on any post i need to redirect back to that post instead of http://www.example.com/?p=7 ,thanks a ton