http://www.pandoraonline.net/installers/...taller.zip
http://www.pandoraonline.net/installers/...taller.z01
Try those.
When you say kRO patcher that usually relates to the main client used for majority to play, not the patcher for kRO's test server (sakray). The above files have everything needed, you'll just have to run heRO's patcher.
@Pandora - Sakray, if installed alone, doesn't install all the required files for the game. kRO is needed to be installed at least once for those files. Afterwards the kRO client + data.grf can be more or less removed for space saving as it isn't needed.