As I understand it the kids were running it. Presumably especially Eric, since that seemed to be his special niche.
Outwardly it looks like they played a little hard and fast with the rules. Unfortunate considering that they were in it to give away money, not underhandedly rake it in.
Apparently the kids were running it, but neither the kids nor the treasurer had ever convened a Board meeting. Apparently some money was give by non Trump people. Questioned payments included over $200,000 to repair a park fountain very near Trump Towers, and $7 to pay a Boy Scout fee the year Jr. was 11.