xbee serie2 with explorer regulated configuration

hello. its my second try to solve this
can anyone tell the jumper setup for:-

mega2560 + xbee s2 +explorer regulated

i am trying to basic set the xbee connecting the mega througj usb to pc over xctu ,.

not recognized.

should i start the serial over the arduino? or
should i bypass the processor jumpering reset to ground?

so far apart from having power led the xbee show no sign of communication.

i have seen uno examples but not mega2560 working examples.

one other issue is that over the xctu the bee firmware xb24-wit...etc can be found. has it to do something with that problem ?

thanks and have great w/e all!