First off a lot of good fluff in here. Good job Vorpal.

Quote Originally Posted by The Vorpal Tribble View Post
Hindsight: You continuously have historical visions of your current location. Rooms, streets, tunnels, and other discrete locations accumulate impressions left by powerful emotions experienced in a given area. These impressions offer you a picture of the locationís past.
The types of events most likely to leave impressions are those that elicited strong emotions: battles and betrayals, marriages and murders, births and great pain, or any other event where one emotion dominates. Everyday occurrences leave no residue for you to detect.
The vision of the event is dreamlike and shadowy. You do not gain special knowledge of those involved in the vision, though you might be able to read large banners or other writing if they are in your language, and gain a +20 bonus to knowledge (history) and +10 to (local) for the area you occupy.
Beginning with the most recent significant event at a location and working backward in time, you can sense one distinct event for every minute you maintain concentration, if any such events exist to be sensed. Your sensitivity extends into the past a maximum number of years equal to 20 x your binder level.
Situational, but highly useful I like it.

Redo: You may reroll any roll you made in the same round, every 5 rounds. Your final reroll must be kept, even if it is worse than.
Confusingly worded. How about:
You may, as a free action, reroll any roll you made in this round. The reroll value must be kept, even if it is worse then the original roll. You may use this ability once every five rounds.

Regression: Despite your appearance, a day with Praeter is like taking a dip in the fountain of youth. For all intended purposes you revert to the Age Category of Adulthood, gaining a +1 to your physical stats per age category you regressed (minimum +1). Your mental stats are unaffected. You do not age a second while bound to Praeter, nor can you be magically aged.
Nice and flavorful.

Start Over: Each time you make your pact you must decide whether to accept or decline a special offer by Praeter. If you accept he will turn back time for your body and soul if you should die while bound. The exact time of the binding on the next day you awake with no memory of your time bound, but in the exact same shape directly before the binding. Anything taken from you is still gone, but physically and mentally you are exactly the same. However, upon awakening you must complete the ritual again and he automatically gains full control over you when he wishes. The limits to what he can make you do is the same as Dominate, so that you will not harm yourself or do something in direct opposition to your alignment such as killing a friend. Praeter only takes direct control if you would attempt to go against his inclinations, though has the ability whenever he likes.
Looks good.

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While the individual abilities looks good, this doesn't seem to have enough of a kick to be a level 7 vestige. I'd probably drop it down to a level 6.