Download the new client for new content.
http://playcityscape.yolasite.com/http://dl.dropbox.com/u/47335740/playCityScape.jarIf you get an error, do this:
1. Go to C:\Users (Or Document & Settings)\[YOUR USER]\CityScape Cache
2. Close everything related to CityScape
3. Right-Click on the CityScape Cache.rar and click on "Extract Here"
If the above doesn't work:
1. Delete the CityScape Cache
2. Launch the .jar or Webclient
3. After the you receive the error screen, close everything related to CityScape
4. Go to C:\Users (Or Document & Settings)\[YOUR USER]\CityScape Cache
5. Right-Click on the CityScape Cache.rar and click on "Extract Here"