You dont “install” the scripts… you “run” one of them at every boot
…
Ok so you already downloaded the scripts from here:
http://pyaxelws.googlecode.com/files/scripts102.zip
and extracted them to /home/userone/Downloads/1022
And you’ve been to this page in Chrome:
https://chrome.google.com/webstore/detail/dimpkkdfecfbdohmdocanhjhcklkmaed
and installed/added the extension to Chrome.
Python is most likely already installed on your system, but just in case:
sudo apt-get install python
This will install Python 2.7.1 from the Official Ubuntu Software Repositories (where you should ALWAYS look first… remember your friend Synaptic ?)… so you can get rid of the version you’ve downloaded.
Now, to run the scripts, you can either run them manually every time you start your PC, with:
/home/userone/Downloads/1022/pyaxelws.py
The problem with this is, not only is it a pain, but unless you use screen you would have to leave the terminal open… so instead let’s add it to the “Startup Applications” list, so it automagically gets started every time you boot.
Open Startup Applications (search for it in the Unity application lens)
Click Add
Make the resulting dialog boxes read
Name : PyAxelWS
Command: /home/userone/Downloads/1022/pyaxelws.py
Comment: Download Accelerator for Chrome
Click the Add button.
Check there is a tick next to PyAxelWS in the “Additional startup programs” list.
Click Close
Reboot.
You’re done. 
You could always change the name of the 1022 folder to .1022 (the “.” makes it hidden) then adjust the Command: accordingly.
To -
Command: /home/userone/Downloads/.1022/pyaxelws.py
Also be aware of this from the description on the extensions website:
https://chrome.google.com/webstore/detail/dimpkkdfecfbdohmdocanhjhcklkmaed
Tested on:
• [b]Chromium 9.0.591.0 (Developer Build 66866)[/b]
• Linux 2.6.32-21-generic on i686
Tech details:
The pyaxelws Python script implements version 76 of the IETF WebSocket Protocol draft http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76. Since the WebSocket protocol is not finalized and is in the process of being improved and standardized by IETF HyBi Working Group, [b]pyaxelws may not be compatible with newer versions of Chromium[/b].</blockquote>
Though that was probably written some time ago, it may still stand… it certainly hasn’t been removed from the description yet :o