Sourceguardian problem

[soudek]

Xp pro, xampp-win32-1.5.1
I´ve downloaded ixed.5.1.win from www.sourceguardian.com

edit php.ini:
extension_dir = "C:\xampp\php\ext\"
safe_mode = Off
extension=ixed.5.1.win

moved ixed.5.1.win to extension_dir

phpinfo:
SourceGuardian
SourceGuardian Loader Support enabled
SourceGuardian Loader Version 5.0
SourceGuardian Loader Build Number 0x0000000B
Thread Safety enabled

then:
PHP script C:\xampp\htdocs\npv\INDEX.PHP is protected by SourceGuardian and requires file ixed.win.5.1.1.pxp.

I´ve renamed ixed.5.1.win to ixed.win.5.1.1.pxp ..... same error

There isn´t file ixed.win.5.1.1.pxp on www.sourceguardian.com

Please help me[/i]