pokemon mystery dungeon red rescue team iphone gpsphone emulator save failed problem! need help!! plzzz!!!!!!?

I am using GpsPhone (I tried GBA.EMU as well) on Iphone jailbroken ios 5.1.1
i am playing Pokemon mystery dungeon red rescue team
but everytime i tries to save the game it saids save failed.
I tried to transfer the save data to the computer, and tries to open it with GBA advanced. yet the emulator on PC seems not to recognise the .sav file... even after i change it into .sg1/.sa1 files.....no use at all.
I tried to start a new game on the PC, save it with the 128k file saving... change the file back to .sav and import back to my iphone.... yet the iphone does not recognise the file.

I tried to open the original save file generated by the gpsphone after defeating Rayquaza qith notepad on the computer.... but it only contains one character throughout the whole 64 kb document....(yes... the gpsphone runs 64kb file saving): y
what is that....
but the save file generates from the PC emulator contains lot more other character....

so now....
can anyone tell me how could I save my progress using the ingame save option on gpsphone so tht i can use wonder mail....?

i would also appreciate if someone can tell me how can I transfer the save file generated from PC to my GpsPhone so my iphone emulator can read the file.

Thanks alot!!!!!!!!!!!!!!!!!!!!!!!

P.S. it is sure that there is nothing wrong with the ROM file. My friend used the same file on android and he can save his file.