Info about intterrupt vectors in MINI2440 + NOR

Hi,
  I am writing some C code for the MINI2440 board and I am facing an
issue: I am trying to configure the interrupt handlers (I am using the
pre-installed bootloader to test my firmware). It seems that I cannot
modify the data in the physical addresses of the interrupt
(0x00000000/0x00000004/0x00000008/etc) because those are addresses of the
NOR/NAND. 

After the boot is compled, is there any way to remap the SDRAM at
0x00000000?

Does anybody know how/where to install those interrupt handlers?
 
Are there some pre-defined addresses where to install them and where the
bootloader is setting the interrupt vectors?

Thanks in advance for your help,
Damiano