You rock Mistico... !!! Simple install package, no need to mess around editing any kexts!!!
I got my machine fully running, the WiFi isnt working though.
I had an IDE DVD drive, so I just installed OSX using my old Pentium D machine, with Intel 945GNT board, and put the HDD back in my P5B machine.
OSX86 Version: JaS 10.4.8 AMD Intel SSE2 SSE3 (with SemtheX 8.8.1 kernel)
P5B Deluxe WiFi AP
Core 2 Duo E6600 2.40GHz
2GB DDR2 667MHz memory
Hard Drives: Hitachi SATA 250GB+160GB+ Seagate SATA160GB(this one has the installation)
Now I'm just gonna look for all updates I can apply. Can someone please provide a link, it might help....
I updated it to 10.4.10 with this guy.