Quote Originally Posted by weif View Post
I have this working on 1.5.6a and on 1.5.6c, so it should work. From your screenshot, I can see that you have at least a missing entry in a language file - that's why you see "TABLE_HEADING_DELIVERY_DATE" instead of the instruction to select a date. The missing calendar pop-up indicates either a javascript conflict or missing header files. I would start by double checking that you installed correctly and all the files are in the right places...
It could also be something missing from the css that would cause the calendar to popup in view (it may be popping up off screen somewhere).