Hey Guys Is there a way to do unattended the installation of the boot screen in all the PC I know how to do it unattended for one and two kernels but now with this Quad core is so rare :S...

I used this method

bootcfg /copy /D "Windows XP Professional" /ID 1
if %NUMBER_OF_PROCESSORS%==2 goto DUAL
REM ----For Single proc
bootcfg /RAW "/Kernel=singkrnl.exe" /A /ID 2
goto End
:DUAL
REM ----For Multiprocess/Hyperthread proc
bootcfg /RAW "/Kernel=dualkrnl.exe" /A /ID 2
:End
bootcfg /Timeout 2
bootcfg /Default /ID 2

but now..how do I do for new pcs with Quad Core

The kernel for more than one core is the same irrespective of the number of cores.

just replace the == with >= in the second line

i have a quad and is rare to integrate the boot for my UE cd