[jailer]

Forget it - sorted it myself. It was an <if> condition after all.

Anyone interested - from the install instructions:

Step 2) Adding the new headers

1. Select the header by double clicking on it.

2. Scroll to the very end of the template code.

3. Add the code $welcomeheaders

4. Save and close the template.

Change step 3 to:

Add the code <if condition="THIS_SCRIPT != 'adv_index'">$welcomeheaders</if>

And your CMPS will remain clear of the welcome headers should you rquire that.
Add it to your instructions if you like, I'm sure there'd be enough people interested in the option to disable in the CMPS.

Oops, almost forgot - *clicks install*