Thanks for the help - I've got it working now. (I needed to change the enviroment compiler to use c:\lazarus\fpc\2.4.0\bin\arm-nds\ppcarm.exe rather than c:\lazarus\fpc\2.4.0\bin\i386-win32\fpc.exe) and with the above instructions from Legolas its working now!

PS :
I've got a few screen shots/instructions of how I got it installed - I'll post the instructions here over the next week as it might help others new to the world of lazarus/fpc and targeting different cpus to get up and running.