Roles and permissions

Hi,
I upgrade to moodle 1.7 but, I have problems with roles and course management. As teacher or course creator I can't send message to many users, this action is available only with site administrator!?!?.

Another problem is when I try to reply in forum post (as admin, teacher or course creator), I can't -> error message for restrict. I decide this problem when add the teacher in group of course (why? teacher is a teacher of entire course).

Can I send message to my students as teacher in course on moodle 1.7+

thx in advance.


Sorry for my bad english.