rules cck node reference email

Hi everyone!

I just can't find the right rules set up for my situation!

I've got a node type called "client account", with a User reference CCK field and a Node reference CCK field (the latest references a node type called "wine"). What I would like to do is when any fileds from the node type "wine" change, notify all the concerned users by email.

I posted already here http://drupal.org/node/765010 with a similar question with no luck.

Thanks for your help...