[Plugin: Ajax Event Calendar] Event list not viewing correctly

Hi
I have installed this plugin and have it working as I want it to with the eventlist however, I used Improved Include Page plugin to add pages into my client’s existing website and as soon as I add in this page the eventlist doesn’t display correctly.
Link to WordPress Eventlist http://rework.co.uk/wordpress/?page_id=537
Link to external site eventlist is embeded in http://www.rework.co.uk/trainingcal.php
Does anyone know of a fix for this of if this is even possible?

Any suggestions would be greatly appreciated please.

Many thanks
Jo

http://wordpress.org/extend/plugins/ajax-event-calendar/