Of course this happened without my intervention, i don't know why but seomoz is reporting 0 errors.

Hey Guys and girls,

i have a question, i want to disallow all robots from accessing a certain root link:

Get rid of bots

User-agent: *

Disallow: /index.php?_a=login&redir=/index.php?_a=tellafriend%26productId=*

Will this make the bots not to access any web link that has the prefix you see before the asterisk? And at least google and roger will get away by reading "user-agent: *"? I know this isn't the standard proceedure but if it works for google and seomoz bot we are good.