Being new to multi-boxing, I think I can give you some constructive input. The guide was good, but the one thing I think it is lacking is good explanations of what is being done.

For example, you say to download and install keyclone. It'd be nice to have a paragraph explaining what keyclone does and why you need it.
Also, there's lots of screenshots and good explanation on how to install and setup WoWAce, but no explanation about what it is and why to install it.

So, my only recommendation is to not only tell us what to do, but why to do it (what that action will add)