Good questions!
For the top 5 donors it's cumulative. So if you make 4 donations of $50 each, that's $200 you've donated and your total donation will be counted as $200. Provided you made them all under the same name. So making 2 in your kinship's name and 2 in your name, means your kin gets credit for $100 and you get credit for $100.
Kinships are not included in the top 5 because they have their own competition to get a lottery named after them. That and it's hard to say "This group of 20 people get this one thing that they'll have to fight over". So the lottery makes more sense as it recognizes the contribution of the group.
Also, EVERYONE who donates gets the titles. Whether it's $1 or $1,000.
Everyone is also part of the chance to win the 1500 point codes and the 5th CD set of all three sound tracks.
There are two more goals waiting once we get past the $6,000 mark for the Horseshoe that will be open to everyone who donates. But I'll keep those under my hat for now.