Sizes of the adverts? and are there any other directional notes?

One page per promo, typical 8 1/2 by 11". Might need to be separated into two different ads, as there are two focuses. One for educational and public (newspapers, radio spots, tv news, school district workshops) and the other one for church related (again radio spots, tv Christian shows and churches).

Hi, so in total you need 4 flyers for this contest?

Just two flyers.