bbPress.org

I tried but no success…
1) Can I modify the message “register for this site’ to something else? https://www.dropbox.com/s/1cevpi2aeg6j4up/Register.jpg

2) Can I modify the email sent after registration? e.g. the auto email sent to new user says
Subject: Your username and password
Body:
username: xxxx
password: xxxxx
http:domain.com/login

Can I modify both subject and body message? where to do that please.

Thank you so much