Installed following docs, but generates error

[glenbot]

After installing the testling packages running npm I get the following error running the example test

$ testling test.js
The "sys" module is now called "util". It should have a similar interface.
node/jsdom                      0/0    0 % ok
test.js                         0/0    0 % ok
  Error: Cannot find module 'testling'
    at Function._resolveFilename (module.js:334:11)
    at Function._load (module.js:279:25)
    at Module.require (module.js:357:17)

Here is my npm version:

$ npm --version
1.0.104

My node.js version:

$ node --version
v0.6.1

[glenbot]

seems like newer versions of node.js require NODE_PATH to be places in your bash_profile or bash_rc.