You can use this (default configuration) as a base for the wlan1 settings:
http://forum.mikrotik.com/t/rb2011uias-2hnd-in-but-no-wireless-access-point/104732/1
Then you need to set something like:
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk mode=dynamic-keys supplicant-identity=MikroTik wpa2-pre-shared-key=***
And add the wlan1 to the bridge.
But do you have a DHCP server in your network?