Squash, unlike most plants, have separate male and female flowers. Also, squash tend to put out a lot of male flowers before they start producing female flowers. All of the male flowers will collapse without setting fruit, as will some of the females. Be patient. You should see fruit setting soon.

Male and female squash blossoms can be distinguished visually. Females have a miniature squash fruit under the base of the blossom. Males don't.

Jim

Thanks for responding! I see the difference between the males and females, and a few of the female flowers have actually set fruit (I'm so excited!), but some flowers that have bloomed (both M and F) have been physically deformed... the male stamen was withered and brown with no pollen even though the petals were fine, and a few of the females' parts upon bloom were also brown and withered, with normal petals. I have pictures but I don't see where I can post them. It's so strange- maybe just a quirk of nature? The plants seem to be fine and there is some fruit set, so I'm not worried just curious! Gardening has been very educational, that's for sure!