I have alot of african violets, and they seem like they are drooping alot lately. I heard they need repotted once in a while in new soil? is this true? I always had luck with them in the past,oh also i put a bit of epsom salts in them maybe about every six months and was told that is good for them. Is this true too? thanks Jo!~

If they are drooping, they might either need more water when you water, or they have been given too much. Let the soil dry between watering, they don;t need to be moist all of the time. I have 10 myself. Some people like to re-pot them every year in the spring in the same size pot or in the next size up, depending on the root-ball size.
As for Epsom salts,I have never used it myself, but wouldn't use it as a fertilizer, too much can cause the leaves to looked cracked in some plants, it can help green up plants. Lots of orchid growers use ES on phals to drop kick them into bloom/flowering when the temps drop. Some orchid growers use ES to provide a section of micro-nutrients.