OS is Windoze Vista, 32 bit
Aptana Studio 3.4.2 installs PyDev 2.7.0.
How do I install PyDev 2.8.2?
I went to Help>Install New Software
There's an hack to do this: https://stackoverflow.com/a/25971061/398491
Basically you can install a beta version of Aptana in order to uninstall PyDev and then install the latest PyDev through the update site.
Aptana has it own pydev installed because of its internal dependencies, so it is not safe to update it and you have to wait Aptana team to release a new version of the software. If you want to be more flexible and update all the parts you need, just use plain Eclipse with all the plugins you need installed.(pydev, html, javascript, css and so on...)