This project is obsolete and being replaced by http://github.com/taweili/taobao
Taobao is the leading C2C site in China and has recently released API to their service. Tao Tao Ruby is the gem/Rails plug-in to enable access the API from Ruby and RoR.
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.