[Freesurfer] freesurfer in cygwin

hi, I have downloaded freesurfer in WINDOWSXP and want to run it via Cygwin. But it don't work. Is there possibility to run it ? The freesurfer I used is the public copy. I follow the "LinuxInstall" and type : tar xzvf freesurfer-Linux-rh9-stable-pub-v3.0.5-full.tar.gz export FREESURFER_HOME=<j:/cygwin/usr/local/>/freesurfer export SUBJECTS_DIR=<=<j:/>/freesurfer . ${FREESURFER_HOME}/SetUpFreeSurfer.sh

and then, any command seems don't work, (e.g. mri_convert , tkmedit, tksurfer) and reture erro like this (bash: mri_convert: command not found). how to resolve the problem and how to run it normally in WINDOWSXP? thank you! Shen Lin