the problem is this:
The contact form solution pack uses the php mail function. GoDaddy windows hosting accounts do not support the php mail() function.
the mail function is only supported on GoDaddy's Linux hosting accounts.
GoDaddy will tell you otherwise, but Google is littered with people that cannot get mail sending using the mail() function on GoDaddys Windows hosting accounts.
Do not confuse what I am saying as meaning GaDaddy's windows hosting accounts do not support php.
I am only saying GoDaddy's windows hosting accounts do not support the mail() PHP function call.
$mailObj = mail($mailTo,$mailSubject,$mailContent,$mailHeader);
is at line 254 of the mail_PHP.php file