1) How many ways can eight people, denoted A,B,.....,H be seated about the square table shown in the following figure where figure (a) and (b) are considered the same but are distinct from figure (c)?

[IMG]http://imagesavers.com/040927/1096305491.gif[/IMG]

2) If two of the eight people, say A and B, do not get along well, how many different seatings are possible with A and B not sitting next each other?

My answers were (1) 5,040

(2) 3,600

Dont know if my answers are correct, if u think it's not could u plz solve it for me? better if with explanations. Thanx.