i have xampp instalated and it works perfect whit php nuke, but i dont know what i have to config. so users recive their mail whith that link for activation. Can someone help me. ops:

open c:/windows and find the file php.ini

Find [mail function] and edit it

If you havent touched it before it will say "SMTP = localhost" change that to mail.somedomainname.com or smtp.somedomainname.com (must be a real smpt/mail server) then below that you have send mail from : put a-real-live-email@somedomainname.com matching the above.