at this stage of the game you have to do everything manually;extract the maincode and decrypt which can be done with the tools available.
More important would be finding the ali sdk v4 that the firmware was made with,the ones available on the net are too old and are for the old ali processors.
APP init ok
MC: APP init ok
<< SDK4.0ba.4.2_20110225 >>
Libcore version [email protected]_20110615(gcc version 3.4.4 mipssde-6.06.01-20
070420)(Davy.Wu@ Thu Jun 23 09:04:16 2011)
Libplus version [email protected]_20110615(gcc version 3.4.4 mipssde-6.06.01-20
070420)(Davy.Wu@ Thu Jun 23 09:03:30 2011)