You should update your referral link sooner as old link will be phased out in a few weeks time.

quote:

New Referral Link

Please update your referal links with our new link, old links will
still work
for the time being, however they will be phased out in the coming
weeks.

http://www.mccrawmail.com/signup.php?referer=emailaddress

To begin viewing ads log into your McCrawMail account and click
view ads.

http://www.mccrawmail.com/login.php