Change default memory map on DSP using DSPLINK

HI,
Can anyone please give some information on how to change the default
memory configuration for DSP.
I tried to follow the instruction given in
http://wiki.davincidsp.com/index.php/Changing_DSPLink_Memory_Map
. But it didnot work for me. I wanted to increase the shared memory
beyond 2 MB and also the code and data memory.
Thanks in advance
Pramod