Please see more detail. http://alexgorbatchev.com/SyntaxHighlighter/manual/demo/
You use Windows Live Writer User?
Easy to use with Windows Live Writer Plugin.
Use Custom Code to Yes. (Recommended CKEditor)
To make things worst, the original plugin site is mainly in japanese, so I couldn't find any support for it.
This same developer created MovableType XML-RPC plugin, wich works remarkably well, so I was really surprised in having too many problems with this one.