Copy all files in the same directory with the old files.
Double click on "Fix.bat".
Fix.bat will create a new folder "Ergo Proxy \[03-23\]" with episodes 3-23, Opening and PV Full.
After that, you can delete the old files and xdelta data files.
Information:http://tipota69.wordpress.com/2011/08/17/ergo-proxy/