Refer/invite friend (Erwin's version) for 3.6?

[DDad]

What I did may not be the same as what you did with this hack. If it works great but if it doesn't, sorry.
I?m using 6.2 and cmps 2.2.1
This is for A)

look for

// ############################### start send to friend permissions ###############################
 if ($_REQUEST['do'] == 'sendtofriend' OR $_POST['do'] == 'dosendtofriend')

replace with

// ############################### start send to friend permissions ###############################
if ($_REQUEST['refer'] == 'sendtofriend' OR $_POST['refer'] == 'dosendtofriend')

all I did was replace do with refer and everything worked for me

B) has not changed