I only got to use the PCLOS computer again today.
Anyway, removing the applet only scratches the surface; I need to completely disable, remove, uninstall or otherwise eradicate the stock network service/daemon. For instance, if I were doing this in Debian I'd just disable or uninstall network-manager and network-manager-gnome, so as to let the Wicd daemon be the only one taking care of the connection.
I don't know how to do this in PCLOS, though. I've tried disabling net_applet and draknetcenter, but there's still a service other than Wicd connecting the Wifi before I've even had a chance to configure Wicd. I've had a look in the ps -A listing, where I'd find the stock network service in Debian, but I can only see wpa_supplicant running and I can't very well uninstall that or I'll disable all wifi connectivity altogether. I think.