Relax everyone. Things take time here. Lots of training of new trainers going on at the moment. Possibly a slight back log. If you've been successful, your time will come. Things are moving along.
Z2190, you could assigned any fleet at any time even after joining. It will state your fleet allocation on the contract when offered and the fact it could possibly change at any time due to demand on other fleets. With your hours on the 777, I would guess you will go 777, but don't discount any other fleet i.e. 787. They like to try and keep Boeing to Boeing and Airbus to Airbus if possible. Sometimes 320 guys do come and go 330 and on very very rare occasions 330 guys arrive and go to 320. ACZ means ACZ, nothing more, nothing less. Relax.