[KWH]

The key to this discussion is "ONLY" live ball fouls have the opportunity for "ensuing kickoff enforcment"
All dead ball fouls are enforced on the succeeding spot (same as last year) and do not have the opportunity to be enforced on the "ensuing kickoff"

Here is my understanding of the 2007 8-2-2 scenarios and ruling:

If a live ball foul by B occurs on a TD and A elects to take the foul on the ensuing kickoff. Then, on the successful 2-point try a foul by B occurs the captain must chooses (10-2-4) which live ball foul will be enforced. If this scenario occurs with time remaining on the clock (in any period) we have no confusion.
However, if this scenario were to occur on the last play of any period the enforcement procedure will depend on which penalty the captain of A chooses. So;
If the captain chooses to have the penalty for the foul during the try enforced, the penalty is enforced on the "succeeding spot", which, if the foul occurred at the:
A)End of the 1st period, enforce on the succeeding spot which is kickoff to start the 2nd period. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4
B)End of the 2nd period, enforce on the succeeding spot which is the second half kickoff. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4
C) End of the 3rd period, enforce on the succeeding spot which is the kickoff to start the 4th period. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4
D) End of the 4th period, enforce on the succeeding spot which is the start of overtime. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4 AND, if overtime is not required the Game is over - no enforcment.

If however, in the above scenario the captain of A elects to have the penalty for the foul which occurred during the TD enforced:
A) If the foul occurs with time remaining on the clock in any period the penalty is enforced on the ensuing kickoff
B) If the penalty occurs during a TD when time expires during ANY period, the period 1, 2, 3 or 4 must (3-3-3a) be extended for an "untimed kickoff"

Consider Play 1:
A scores a TD on the last play of the 4th period to close the margin to B35 - A 30. During the TD, B commits a live ball facemask foul.
The captain of A elects to have the penalty enforced on the "ensuing kickoff"
RULING: Because the captain elected to have the penalty enforced on the ensuing kickoff, the period must be extended for an untimed kickoff after the completion of the try. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4

Consider Play 2:
A scores a TD on the last play of the 4th period to tie the score B35 - A 35. During the TD, B commits a live ball facemask foul.
The captain of A elects to have the penalty enforced on the "ensuing kickoff". The 2-point try is successful making the score A37 - B35
RULING: Because the captain elected to have the penalty enforced on the ensuing kickoff, the period must be extended for an untimed kickoff after the completion of the try. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4

Consider Play 3:
A scores a TD on the last play of the 4th period to make the score B35 - A 33. During the TD, B commits a live ball facemask foul.
The captain of A elects to have the penalty enforced on the "ensuing kickoff". The 2-point try is successful making the score A35 - B35, however Team B is flagged for live ball DPI during the successful try.
RULING: The capatin of A must choose:
A) If the captain elects to have the penalty for the foul during the TD enforced on the ensuing kickoff, the period must be extended for an untimed kickoff after the try. 3-3-3a, 8-2-2, 8-3-5b, 10-2-4
B) If, however, the captain of A elects to have the penalty for the foul that occurred during the try enforced on the succeeding spot, the overtime will begin with a penalty enforced against B. (8-3-5b)

2007 Football - A year to remember!