90% of all dRO downloads are all on
http://ragnarok.bsdz.com/.
Because if this, whenever you are searching for the latest update or something, try typing
http://ragnarok.bsdz.com/filename.rar into your address bar. filename being replaced with whatever you're looking for.
For example, you are looking for dRO7-1.rar.
So, you type in
http://ragnarok.bsdz.com/filename.rar then replace "filename" with dRO7-1.
As the end result, you get
http://ragnarok.bsdz.com/dROv7-1.rar , which is the file you're looking for.