Copy the LineageII.exe and patchw32.dll from your C4 client ( aka the one you play on the non test servers ) and overwrite the ones in your C5 test server client.
Then just start it and your test server folder will now be fully C5, ( PS delete the system folder befor patching, it only takes 1-2 min to redonload it anyway )
Thanks very much for all your usefull information...my game is completely patched for C5 and we just need now the LOGIN server up....its not yet possible to login into the game servers.
Your nice and helpfull attitude is a nice example of the great L2 community we have!