Datetime box problems

I'm having problems with DateTime box -it's on page but is empty. If you click in it calendar shows but under other inputs and no input is possible.
Take a look:
https://www.cyberstar.uk.com/index.php?option=com_chronoforms&chronoform=healthPlanSupport

I've looked in forums but can't find solution. Using Joomla1.5 and v4.
TonyGib

I've made some progress here😀 added and configured custom datepicker, so I have date!
but😟 still have the calendar showing below next button and cannot select a date.
Any ideas? .. please take a look:
https://www.cyberstar.uk.com/index.php?option=com_chronoforms&chronoform=healthPlanSupport

Hi TonyGib,

Please add this in a Load CSS action in the On Load event before the Show HTML action:

div.datepicker_dashboard {
  z-index: 100;
}

Bob

Hey Greyhead - total magic!🙂
Many, many thanks