Hi,
AV Linux 6.0 uses 'Nitrogen' as a light and easy way to manage the Desktop and Wallpaper which doesn't support icons and folders on the desktop, many people like a clean empty Desktop but of course many people also prefer the ability to place launchers and files on the Desktop as well so this is a workaround to the AV Linux 6.0 default configuration.
Nautilus does a very bad job of managing the Desktop in LXDE because it seems some of the necessary pieces for managing the desktop are missing without pulling in an entire Gnome install. If you run Nautilus with the desktop in LXDE it simply displays the default Debian Squeeze Wallpaper and doesn't allow you to change it. I did a lot of work in AV Linux 6.0 to force Nautilus to only work without the Desktop because there were many situations where it could accidentally be called to open by outside apps and then would force it's Desktop over top of whatever was existing.
Sooo if you REALLY feel you absolutely need this functionality you can re-install pcmanfm from the default Squeeze repos and then you will need to change some configuration files to get everything as it was.
Like this:
Open a Root Terminal and enter this to open the lxsession autostart file:
gedit /etc/xdg/lxsession/LXDE/autostart
You will then see the 'autostart' text file that looks like this:
# @xscreensaver -no-splash
@lxpanel --profile LXDE
@nitrogen --set-auto --restore
After PCManFM is installed you will need to change it to this:
# @xscreensaver -no-splash
@lxpanel --profile LXDE
@pcmanfm --desktop
Now you can uninstall Nitrogen because PCManFM will now manage the Desktop, however in this scenario you now have BOTH PCManFM and Nautilus as File Managers so be aware of that.