PS3 Jailbreak Problem

Hello,

Could someone help me out jailbreaking PS3

The console type is:CECH-4204A

I have managed to install this FW:HFW_4.84.2_PS3UPDAT.PUP

But when i'm trying to run script from ps3xploit.com webpage (Hen Installer) it start the process but it fails with these error messages:

The string nsmrd stack_frame could not be located in range ox80100000-0x80300000

br,
Bastis