Firefox 4 does not install

When dragging the Firefox icon to the Applications folder, I get:

"The operation can’t be completed because you don’t have permission to access some of the items."

Solution:
- Open a terminal
sudo -s
hdiutil mount /Users/jerome/Downloads/Firefox 4.0.1.dmg
cp -r /Volumes/Firefox /tmp
mv /tmp/Firefox.app /Applications

et voila

Install LeoHazard 10.6.2 on AMD Athlon64 3500+

Conf. recap:
Gigabyte K8NF9 ultra
AMD athlon64 3500+
GeForce 240 GT 512Mb GDDR5

Boot on LeoHazard DVD
Partition the disk w/ Disk Utility
Options:
    Mac OSX 10.6.2
    Kernels:
        Legacy_kernel_10.2.0
    Graphics_Drivers:
        NVEnabler
    System_Support:
        SATA_ATA_Fix
        JMicron_ATA_Injector
        UUID
        Fakesmc_V1.0
    AMD
    Additional Fonts
    X11
Eject DVD and reboot
On Chameleon menu, <Enter>, then -v -s <Enter>
On prompt: 

/sbin/fsck -fy
mount -uw /
cd /Volumes/snowleopard
rm Extra/Extensions.mkext
rm S/L/Extensions.mkext
rm -R S/L/E/SleepEnabler.kext
rm -R S/L/E/ApplePS2Controller.kext
rm -R S/L/E/AppleIntelCPUPowerManagement*.kext
rm -R S/L/E/Disabler.kext
rm -R S/L/E/AppleHPET.kext
rm -R S/L/E/AppleSMBios.kext

Reboot (long)
Run Marvin's utility (last option) on /System; When all files patched, appl. stops responding => kill it
Reboot: * Important! * Do not try installing anything before reboot complete or you would face privileges problems
Install Dropbox 
Install kexts from Dropbox: everything into S/L/E except ElliotForceLegacyRTC into E/E
Run Kext Utility 
Update NVEnabler.kext:
    Show Content
    Edit info.plist: Root | IOKitPersonalities | NVEnabler | IOPCIMatch => 0x0ca310de
Change the default partition to boot on Windows by default:
    Edit /E/E/com.apple.Boot.plist
    Add new child: Default Partition => hd(1,1) (NB: this matches the partition for System Reserved, Windows)
Activate sound:
    Goto System Preferences
    Select "Line out" for Sound effects and for Output 
Install iMovie 11 (only iMovie, not the whole iLife suite, which causes a KP on AMD)

See which are the packages you have installed

dpkg -l |grep -e "^ii.*"