Trading problem on Ubuntu server

I have followed this tutorial (http://www.wuala.com/blog/2009/03/eff...) to install Wuala on Ubuntu server. The install worked fine, trading storage has supposedly started but after one week, there is 0G local storage and 0% bandwidth. Consequently, I haven't earned any storage, though the storage limit is set to 100G and my server has been online 24% of the time according to Wuala. How can I have trading really work and start to earn storage?