This git repository helps you get up and running quickly w/ a node.js installation on OpenShift Express.
Create an account at http://openshift.redhat.com/
Create a nodejs-0.6 application (you can call your application whatever you want)
rhc app create -a nodejs -t nodejs-0.6
Add this upstream repo
cd nodejs
git remote add upstream -m master git://github.com/openshift/nodejs-example.git
git pull -s recursive -X theirs upstream master
# note that the git pull above can be used later to pull updates
Then push the repo upstream
git push
That's it, you can now checkout your application at:
http://nodejs-$yournamespace.rhcloud.com