xbee pro module is plugged on socket 0 of waspmote v1.2 pro controller(libelium) , so as you said for updating firmware we need xbib board , so please confirm that we only require this board or it can support with waspmote controller also.
You need board that supports the required lines for firmware updates: http://www.digi.com/resources/documentation/DigiDocs/90002002/default.htm#concepts/c_dm_rec_pin_connections.htm
you can use this: https://www.digi.com/products/models/xbib-u-dev
or this: https://www.sparkfun.com/products/11812