Paralells Desktop 5 on Leopard

up until now i ran win xp under paralells 3 and i thought to give a try to paralells 5.
i had some errors when installing it but i managed to bypass that.
first error was the virtualisation check when installing...done that
second was kernel panic becaus of my voodoo kernel ...it wasn't named mach_kernel…done that
now it starts...but it says that the main cpu of my mac doesn't suport virtulization so it stops. i know that my cpu doesn't suport virtualization so i can't enable it from bios.

if paralells 3 work fine...is there a way to bypass/remove the cpu check from paralells 5 to run it even if my cpu doesn't support virtualization? if no...why? if yes...what do i need to do?

my rig is:

Processor: Intel Pentium D 805 2.66GHz ovk@3GHz
Motherboard: Asus P5LD2 REV 1.0
Memory: 4G DDR2 667MHz Corsair XMS2(ram is @800MHz but a can't run at 800MHz cause of my CPU)
Graphic card: Sapphire HD4870 1G DDR5
Display: Samsung SyncMaster 223BW 22"
DVD-Rom: Asus DRW-1814BLT SATA
Hard drives: 1. 500Gb Hitachi SATA II, 2. 1T Hitachi SATA II
Keyboard and Mouse: USB
OS: Retail Mac OS X Leopard 10.5.8 (voodoo kernel 9.8)