Hi, and welcome to PCLinuxOS.
To 1, it is a bug...
To 2 right click on panel, and make what ever you like to set 
To 3, open synaptic, click on reload, make upgrades,
search for Task printer, install it.
Open pcc and configure your printer...
thx for your quick reply
ad 1. left iso top also works for me (for the time being)!
ad 2. perfect!! had not tried this (missed the top-option completely)!
ad 3. think I did as you told, in pcc the icon now has color and opens the window, but I can“t add a printer!!
did I miss anything??
found that CUPS is not running because via Help I got:
CUPS Service Stopped
The CUPS print spooler does not appear to be running. To correct this, choose System->Administration->Services
from the main menu and look for the 'cups' service.
starting the webservice didn't work
what to do?
thx in advance