Well, that's for when you're in the game. If you need to take a screen shot of your folder then you need to press print screen, go to paint, and then paste. It should put up anything that you have on your desktop when you hit the print screen button.
And yeah, you need to go download and install KRO and Sak, you should be able to find them in the download section of the forums. ~_^
heRO will not work because it's missing the Ragnarok files in that folder. What I suggest:
-Check your eRO or Ragnarok Online folder to see which one has the RO files (sdata.grf should be in one of those 2 or both).
-Once you've found the folder, Copy all its files into the RO folder.
-Apply the heRO patch again (by default it will install in RO folder).
Uhh... My eRO folder is the original RO server folder.
So... I copy every single document in that folder and paste it in the RO folder? (Well, except for the applications)