For the auction, there is a website that items are pre-registered on to get seller's numbers for the auction. The site is mygroupauctions.com. It is free to register and you can view upcoming auction items prior to the meeting. Typically, there isn't much listed until the week of the meeting.
As for frontosa fry, check the marketplace. I seem to remember that there was someone selling fry within the last month. I'm sure that we will learn more at the meeting, but from what I know, frontosa get big (12" for males) and typically are kept in a species only tank.