php form with file attachments !!!

[trippin13]

I found this which is what I was looking for and it works apparently

[a href=\"http://www.dtheatre.com/scripts/formmail\" target=\"_blank\"]http://www.dtheatre.com/scripts/formmail[/a]

I can't get it to work

I get
Notice: Undefined variable: separator in D:\client sites\mysite.com\demo\formmail.php on line 47
Notice: Undefined variable: newline in D:\client sites\mysite.com\demo\formmail.php on line 50
Notice: Undefined variable: title in D:\client sites\mysite.com\demo\formmail.php on line 58
...more of them
You are coming from an unauthorized domain.

COuld this be due to me using latest PHP version ? ANy ideas please help

p.s. 'mysite.com' - that's just a online place I tested from

thanks