Questions about Fixing the Flash/Embed Issue

Kirupa posted the fix and explains how to generate the code. Then he proceeds instructing.
[LIST=1]
[*]Copy and paste the generated code into the location in your HTML file you want your animation to be displayed.[/LIST]What does he mean by location? Inside the cell? In Code View? Design View?

I’ve tried several ways, but no luck for the swf to show off?

Can someone be more technical or specific about the procedure?

Another question:

Due to the embed issue some clients could pretend to have their sites fixed. I, for example, have old pages I would have to update one by one… Is this update our responsability or should we charge the client for the update or should we leave the old pages as is?