The Downloads
Place the downloaded files inside your RO folder. There are 2 files inside this and they are the
data folder and the client to run the game. For those that don't have an RO folder you should download kRO and the sakray.
Update you sakray, then download the files for Hayate's Renaissance.
Ragnarok Online Files
KRO Part 1:
http://files.filefront.com/RAG711part1rar/...;/fileinfo.html
KRO Part 2:
http://files.filefront.com/RAG711part2rar/...;/fileinfo.html
KRO Part 3:
http://files.filefront.com/RAG711part3rar/...;/fileinfo.html
Sakray:
http://mirror.katikai.org/SAK_SETUP0711.exe.html
Hayate's Renaissance Client/Data:
http://files.filefront.com/Hayates_Renaiss...;/fileinfo.html
WinRAR
You may also need winRAR to extract these files.
http://www.rarlab.com/download.htm