I don't even see the patch client for kRO in there. Instead of bothering with downloading kRO and then iRO sakray which can be complete conflict due to names of items and such. I would recommend just downloading and installing the full installer, because you're missing the majority of the files from the game.
And, and! I downloaded it from the link Pandora gave me when I first complained about heRO not working because my sdata.grf file wasn't 1gig. AND IT JUST ERRORED AGAIN. D:
Well the sdata is over 1 gb at least, you could try just adding the dll, altough I don't know why they arent there in the first place. You'll find a dll pack in our download section, extract them all to your RO folder and see if it works.
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.