As far as I know, the only way to see what items are on sale with a Zebra after settling a POG, is to scan every item in the aisle and request a 3x2 sign for those items on sale. However, it won't show, or allow you to print "New At Target" or "Priced Right Daily" signs.
Signing for future POGs come in the week before a POG is due to be set. They arrive with the next week's ad circular signs. The to be set POG signs just have the POG code on it and the aisle location. Some one at your store (Ad Prep TM or the Leader who preps the POGs for TMs) should leave those signs with the POG label strips and paperwork so they are ready to be posted once the new POG has been set and pushed.