Here is an answer from Aeclectic Tarot :FAQ What's the difference between a Tarot and an oracle deck?
A Tarot deck is at least loosely based on the 78 card structure of 56 minor cards and 22 major cards. An oracle deck is any other deck of cards used for similar purposes to a deck of Tarot cards, and may also be called a divination deck, meditation deck, or cartomantic deck.
My main understanding though was that oracle decks are more based on intuition and my fiance tells me that with a tarot deck, You can ask more of a variety/ different questions when doing readings. He said " You can't ask the same things with an oracle deck that you can with a tarot deck." Also I think you can do different spreads and mix and match the same ones with the deck. I can ask him again later, since he is sleeping now if you want a better answer.
**** TO whoever wins, I found a box big enough to ship them whilest rummaging, I don't need any fee or shipping costs because it is now too late to get it and take it off the auction. Sorry