Please e-mail me if you can to let me know when things like this happen - it takes a few days for me to catch it in the forums otherwise.
Apparently another victim of changes at GetThere/Sabre.
Seems that the Cathay availability is working correctly on the other tools mentioned above.
One question - for those of you registered on the Cathay site can you still see subclass availability? If so, there may be a work-around on this one.
Cheers!