The funnest part of potty training for sure!!!! i would recommend trying to identify why she is still pooping in her diaper: is it attributed to fear, not wanting or not knowing. When the cause is identified it is easier to be creative about the solution. But regardless i would for sure require the use of pull ups at daycare.
If because of fear, the first thing is to ensure that she is always well hydrated and that she consumes alot of fiber to avoid hard stools. This is sometimes why a fear may start and continue. I tricked my nephew by making him poo in his diaper while sitting on the toilet (and making a hole in the diaper) when the poo fell in the toilet he asked me why it had went "ploosshh" and with a lenghty discussion that addressed the fear.
If it is control or not knowing the biggest thing is finding any signs she will poo either with schedule, hidding, forcing etc... and bringing her to the toilet right away, even if only to finish the poo she has started. This has worked with all my d/c kids as well as my almost 3 year old son.
Good luck, i hope this will help