i unzipped fpc4nds into my fpc-directory c:\fpc214.


the fpc.cfg in c:\fpc214\bin\arm-nds:
-Tnds
-FuC:\FPC214\units\arm-nds
-XParm-nds-
-FDC:\FPC214\bin\arm-nds
-FiC:\FPC214\libnds
-FlC:\devkitPro\libnds\lib
-FlC:\devkitPro\devkitARM\lib\gcc\arm-eabi\4.1.1
-FlC:\devkitPro\devkitARM\lib\gcc\arm-eabi\4.1.1\thumb
-FlC:\devkitPro\devkitARM\arm-eabi\lib
-FlC:\devkitPro\devkitARM\arm-eabi\lib\thumb
i've set the parameters in the IDE accordingly.

Path:
PATH=c:\devkitPro\msys\bin;C:\WINDOWS\system32;C:\ WINDOWS;C:\WINDOWS\System32\Wbem;C:\FPC214\bin\arm-nds;C:\FPC214\bin\i386-Win32