i read the 50+ pages of the other topic, seems you all are having the same damn issue, easiest way to do it is just delete ko from Add Remove Programs and go here and download the client.
after downloading that complete, run the wizard to install knight online.
while that is installing download the new moradon patch here:
after knight online is fully installed update it like you normally would, it will stop at about patch 1.45x and say ftp error bla bla bla, you then close it out and run the moradon patch fix. it will then inject itself into the folder and all you have to do is click "Knight Online" after the wizard closes. The old start/option/homepage thing will show up and it will update 1.507 and 1.508 you then hit start, it will say run from knightonline.exe.
you then click on the same exact thing you have always used and the new start/option/homepage thing should pop up and you are set and ready to go.
total time this takes = 30-40 minutes, you guys seemed to struggle the other way ...