how to save on the game Inuyasha: The secret of the divine jewel?

how to save on the game Inuyasha: The secret of the divine jewel?

Ok, Ok, i confess, i did not buy the game. i bought the acekard 2i and got the rom off of romulation.net. how now, for sum dum reason, i can’t save. oh and while your at it, can u tell me a site where u can get free nds roms? it can’t be romulation or rom-freaks though. thx