tano, oh, thank you. I never heard about it.
I think there must be Slavic spoken in around Trieste. And I'm not sure about Friuli. I also think in the times of Francs (or maybe Langobards) Slavs settled in many places in North Italy and influenced local dialects. I also know that Romance dialects were spoken in Dalmatian cities until recently.
I have a friend in Herceg Novi (Castelnuovo:)) or maybe now in Kotor (Cattaro), and my another friend when visiting him always confuses Slavic speech of locals (Bokelji, people of the bay) with Italian when he hears it from distance. I think he would have the same impression from speech of some Croatian coastal cities. I also heard about some mixed Croatian dialect on some island. But I haven't hear about Molise.
This topic, Slavic/Italian contacts is what I always wnated to know more about. Especially given that the Italian "ciao" (the famous Italian word ciao) comes form "Slav":) Slav, sclavus (slave), sciavo/schiavo, ciao.