That's because ski has already renamed his Wow-64.exe to Wow-64.exe.old. That's what he was telling you to do. You rename Wow-64.exe to Wow-64.exe.old, then you will have Wow-64.exe.old.
Right i did that and honorbuddy is still giving me that
Honorbuddy v2.5.7684.656 started.
Logging in...
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You have not selected a valid instance of WoW to attach to!
Please restart Honorbuddy and choose a valid instance of WoW to use Honorbuddy with!
This version of Honorbuddy only supports WoW Build #17128
You are currently on build #0
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