Ok. here is what i did:

I mixed 1 packet of yeast, 2 cups of sugar, and 1 gallon of water
together. I am told that this makes an unpleasing to taste alcohol
that is drinkable after fermentation.

Well, I already know that it would taste displeasing, but would it
produce a drinkable Alcohol (even thought it wouldn't taste great)? I
have also been told that all I would have to do is distill it (in my
dreams of course)to produce Vodka.

Also, I know you can make wine's from Frozen Fruit Concentrate, does
this include Orange Juice Concentrate? If so, 2 cans OJ-Concentrate,
2Cups Sugar, 1 gallon water, 1 pack yeast, let ferment for 7-10 days
correct?

Thanks ahead of time,
gprime