Hi goldfinger, sorry I seem to have missed this post.
More languages are planned for the future, however we are currently working on Chinese both simplified and traditional which should be live in a few weeks.
Again, the affiliate program will also be translated to make it easier for our affilaites.
As I mentioned in a previous thread regarding our Spanish site we also have Chinese support staff to cover all aspects from customer support to affiliate help on site here at Betfred HQ in the UK.
Hope this helps?