isn't TIM a cellhpne companny offering 3 and 4G connections?
wap, can't remember anything about it
if you have a router connected to a 3/4G network and you have to work with a wep network that is ok, as always wpa and wpa2 are more secure because wep pasword can be cracked in something like 1 to 5 hours
more information on what exactly you have there and what you want to do, please be very specific(brands of equipment and similar stuff are helpful here)