I have som fields that are date type (so using the calendar) and the pop up doesn't work on the backend, neither on jcook and my site.

thanks in advance,

see this thread for more info on fixing date picker on your site (no solution to problem in sandbox for 1.5)

www.j-cook.pro/forum/32-trouble-shooting...lem-with-date-picker

I see all code correct and the lines you mention on that post are in the code,
but i still do not see the pop up!

I see all code correct and the lines you mention on that post are in the code,
but i still do not see the pop up!

But, do you actually have the jquery files - CSS and JS - available?

Use Dev tools to see if you have any JS errors. I'm certain that the files don't exist so that calls to their methods are failing.

Hope it helps,

Gez