Whoa... wait a second. I can promise that CSS Menu Writer is not far behind others. There is an easy way to fix your problem with a little logical thought here.
First, is the design of all your pages somewhat similar? I am assuming they are as you want to add the same menu to all of them.
Is what you want to do is find the code before and after where your menu will go on a page that currently does not have the menu. Let's for arbitrary purposes of example say it looks like this:
<div id="headerArea">
Some stuff here.
</div>
<div id="innerContentWrapper">
Some more stuff here.
</div>
Now, let's pretend you want that shiny new menu of yours to be the first thing inside your "innerContentWrapper" on all the pages. It's simple, one quick Find and Replace with Dreamweaver will do the trick.
You could find every instance of
<div id="innerContentWrapper">
And replace with
<div id="innerContentWrapper">
<div id="myMenuHolder"><?php include the menu ?></div>
Regards,
Brian