Oh, okay on the emofuri! They are time consuming so if you ever do them take only one request, hahah
About the auctioning...
✿ your starting bid (SB) is the base payment that you want people to add onto.
✿ Minimum increments are what the minimum bid should be, for example if the SB is 1b you could make the minimum increment 1b. Do that and the lowest possible next bid would be 2b.
✿ Auto buy (AB) is a price or an item that if someone bid it, you would close the auction and declare them the highest bidder.
I think its a lot easier to look at an auction to see how it works, so heres one auction i did not too long ago:
link
that was actually my first auction, so i had to learn all the terminology by myself
xp if you have any more questions, feel free to ask!