(Been a while since i did this stuff... so correct me if im wrong.)
You could always try this...
1* Download the latest Kro and Sakray. ( i haven't a clue of what version its at, heh.)
Download the qrro client
install kro and sakray then install the qrro client and click qrro.exe
it will patch it all for you.
*** [for everything below] Make a Backup Before you make any changes ***
2* go through your patch files
find and put a "/" in front of the update that errors you out
and repatch (qrro.exe)
3* if u simply don't want it patch kro and sakray goto your
qrro.ini ( configuration Settings) file and take out the [KRO] section and the [KRO Sakray] section and save it.
methods 2 and 3 aren't rly recommended but your client should now work.
edit: I figured out the problem, pretty much comes down to, get the latest kro and sakray.
But to get around it just download this
http://putstuff.putfile.com/59714/4322718
and install it to your qrro folder ( its the non updated client ) seems to work but the custom items aren't correct heh. but atleast you can play.
PM me if u have questions.
good luck.