if you can send a swing with him, maybe that is the way to go! He may be able to be "day trained" to sleep in a crib... so that he can nap there. Napping often works differently than nighttime sleeping anyways. If he wont take a pacifier that is ok... does he like to be swaddled? my daughter LOVED to be swaddled and put in a swing to nap... she also preferred a bassinet or a car-seat to her crib- I just think it was to spacious for her to feel snug and safe.
Tell the care provider about the sleep issues. If she has a decent amount of experience with infants she'll probably have plenty of good ideas... and my even say- "i know just what to do".
We used the "happiest baby on the block" techniques with our daughter... and they worked like a charm! We learned those techniques from an infant specialized daycare provider who taught a "baby care" class as part of our hospital's labor and birthing classes. I highly recommend checking out that book, or looking up the techniques online!
Other than that just relax... it'll be all ok! You are doing good, don't expect too much from your baby... it is ok if he need's "just to know your still there" at this age! You are his whole world. When he is at daycare, he'll be fine- and I bet he'll get into a happy routine there quickly!
-M.