Nodejs installed older version?

So, when I was installing nodejs, I used the https://npmjs.org/install.sh | sh

And when I do node -v I get v0.5.11-pre. Am I correct in assuming this is the wrong node I want to be running for npm? Though I did try installing it using the node-v0.10.4-linux-x64.tar.gz but hit some walls in the setup (as I did it on Webfaction) and couldn't get the make & make install work and had to find a work around.

Is there an easy way to update my nodejs or to redirect it to the correct version?