This guide assumes that you are running Tiny Core Base with flwm
First you have to install consolekit if you want to store passwords else you have to run nm-applet as root
http://forum.tinycorelinux.net/index.php/topic,13783.msg77039.html#msg77039then install network-manager-gnome and add to /opt/bootlocal.sh
/usr/local/etc/init.d/dbus reload
/usr/local/etc/init.d/NetworkManager start
you need a system tray for nm-applet to show up itself
so install lxpanel and
echo "lxpanel &" > ~/.X.d/lxpanel
for technical reasons you should not start nm-applet in .X.d
if you look at .xsession a new process is forked with & as a result nm-applet is out of ck session and you will have an unauthorized nm-applet at the end
instead run nm-applet manually or create a menu item to do it
nm-applet requires gnome-keyring to store passwords so another guide is needed for that
but nm-applet works without it if you don't mind typing password each time
also you can install a notification daemon: xfce4-notifyd or notify-osd
it displays pop-up messages from nm-applet
for vpn connection you need a vpn plugin: NetworkManager-vpnc