There should be male and female flowers. Look at the base of them. The females will have small swellings where the fruit will grow and will normally be close to the center of the plants, males further out. You can hand pollinate with a q-tip if you choose. Dab a little pollen from the males and touch it to the center of the female flower.
As for the slime trails, look for snails or slugs and remove them.
Good luck!
