Newbie question: How to page break

Our company has a license for this product which was evaluated by someone else who has since left, so I am having to learn from scratch.

The way we present web pages is they are coded in XHTML with other proprietary code that goes through a pre-processor before it is rendered to the screen.

I am trying to understand how to incorporate page breaks into our code. I am assuming that if I add the following:

<pd4ml:page_break> (or <pd4ml:page_break/>?)

to my html code, that when the pdf is generated, a page break will be implemented at that line in the code.

So far, I haven’t had any luck, because unfortunately, if I use the tag as above, our processor declares it as invalid and will not render the screen at all.

So, my first question: Am I correct in my assumption that in order to add a page break to my pdf, I only need to add the page break tag to the html?
(see below for a larger example of how we are using it.)

My second question is: Which form of the tag is correct? I have seen the one with and without the slash used in different examples.

sample html usage:

Here is some text on one page...

<pd4ml:page_break>
...and this text will begin at the top of the following page