How do you embed a Bookeo widget in iWeb? Use iFrames?

Question

I am trying to embed a Bookeo widget (Bookeo is a website that maintains bookings for business, such as tours) using iWeb.
1. First step, the instructions from Bookeo say to insert the following HTML code where you want the code to appear. 
<script type="text/javascript" src="http://bookeo.com/widget.js?a=231MUKEPR13769HL64DC"></script>
I used the HTML Snippet but all I got was the spinning wheel.
2. Second step, Bookeo suggested that Bookeo widget is inside another iframe, and since iframes are not resizable  I needed to reset the height attribute to 1500 px.  Bookeo suggested the following code.
<iframe id="widget2-frame" src=".//Payment_files/widget2_markup.html" frameborder="0" style="width: 100%; height: 1500px;" scrolling="no" marginheight="0" marginwidth="0" allowtransparency="true">&lt;/frame&gt;</iframe>
I still got the spinning wheel, and even after I saved and published the above code it still didn't work.  The published web pages comes up with an error message, and the iWeb page still has the spinning wheel
3. Third step, after a bit of Apple Communities searching I tired the following code.
<div style="width: 725px; height: 900px;">
<script type="text/javascript" src="http://bookeo.com/widget.js?a=231MUKEPR13769HL64DC"></script>
</div>
This 'worked' on the published webpage, but I still get spinning wheel on the iWeb page (even after I've saved and published the page.
My question is whether anybody knows a more elegant solution or is my third step the best way to proceed, even though I still get a spinning wheel on the iWeb page?
Thanks, Paul

Answer 1

Hi Wyodor,
Thanks for responding.  I think that what your suggesting is that when you inserted the script it worked for you.
I just tried the demostration example you used of the massage bookings to see if I could get the same result as you. 
I inserted the folowing code into the HTML Snippet in iWeb on new test page on my website
<script type="text/javascript" src="http://bookeo.com/widget.js?a=296X6L43U12C057243FB"></script>
I then published it, but on the published webpage I only go the very top right hand corner of the Bookeo form, whereas I can see that on your example http://home.wyodor.net/demoos/bookeo/BookeoiWeb.html all the Bookeo form is there.
Not sure why the difference between our two outcomes, but I'm only new to iWeb so maybe I've missed something.  Could it be that I'm placing the HTML snippet to the right of a left hand column of information and that's causing only a portion of the widget/bookeo webpage to be visible? 
Thanks
Paul