I found this while searching around the net. It apparently tells you where to find all the Tron Files in T:E.

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1.NAVI BIT – 0Xp – Chapter 1: Reboot – Cache Facility 6 – On the Critical Path

2.Infected – 0Xp – Chapter 1: Reboot – Module 8 Lower Concourse – In the First Combat Zone

3.Tron – 25Xp – Chapter 1: Reboot – Master Router Control – In the Final Combat Zone

4.Sentry – 50XP – Chapter 1: Reboot – Stack 142 (Basics Only) – On the Critical Path

5.Zuse – 50XP – Chapter 1: Reboot – Exterior Maintenance Terrace 43 – On the Critical Path

6.Light Cycle – 50XP – Chapter 1: Reboot – End of Line Club – Start of the Light Cycle Sequence on the Right

7.Scout Sentries – 100XP – Chapter 2: Shutdown – Stack 29 (Local Archives) – On the Critical Path

8.Solar Sailer – 100XP – Chapter 2: Shutdown – Solar Sailer Departure Area 5F – During the final black guard battle on the dock

9.Quorra – 100XP – Chapter 3: Arjia – Solar Sailer Arrival Area 5F – On the Critical Path

10.Arjia – 100XP – Chapter 3: Arjia – Arjia City – On the platform after the first elevator ride.

11.Arjians – 150XP – Chapter 3: Arija – Arjia Plaza – After the First Combat Zone

12.Light Tank – 150Xp – Chapter 3: Arjia – Recognizer Berth 14 – On the Critical Path

13.Tron City – 100XP – Chapter 4: The Combatant – Periphery Corridor South – Near the first Jump during the Light Cycle Sequence

14.Recognizer – 100XP – Chapter 4: The Combatant – Periphery Corridor West – After the ninth Jump during the Light Cycle Sequence

15.Game Grid – 100XP – Chapter 4: The Combatant – The Game Grid (Service Entrance) – On the platform before you enter the elevator

16.Clu – 175Xp – Chapter 4: The Combatant – The Game Grid (Service Entrance) – At the entrance of the tunnel, before you reach Gibson

17.Bostrum Colony – 250XP – Chapter 5: Identification, Friend or Foe – The Kernal (Central Lobby) – Behind the first destructible wall

18.Bostrumites – 250XP – Chapter 5: Identification, Friend or Foe – Central Storage F5 Deck – Enter a narrow doorway to access the side room

19.Heavy Sentries – 200XP – Chapter 5: Identification, Friend or Foe – After Energy Reactor Processor 14 – On a ledge during the black guard fight

20.Basics – 200XP – Chapter 5: Identification, Friend or Foe – Roadway Closed – In the first tunnel during the Light Cycle Sequence

21.Gibson – 200XP – Chapter 5: Identification, Friend or Foe – Energy Test Excavation Site – Perform a wall run during the fight with Gibson

22.Flynn – 250XP – Chapter 5: Identification, Friend or Foe – Western Outlands – On a nearby platform after reaching Disc Station.

23.Anon – 250XP – Chapter 5: Identification, Friend or Foe – The Arjia Conduit – After the fourth jump during the Light Cycle Sequence

24.Light Disc – 225XP – Chapter 6: The Approach – Jalen Plaza – In the first plaza, near the sculpture, before boarding the Light Tank

25.Radia – 225XP – Chapter 6: The Approach – The Hub – In the last plaza on the perimeter walkway

26.Abraxas – 300Xp – Chapter 6: The Approach – Integration Chamber – In the vault near the horizontal ETC during the Abraxas fight

27.Outlands – 250XP – Chapter 7: End of Line – The Outlands – On the ledge near the start of the level

28.Black Guard – 300XP – Chapter 7: End of Line – The Regulator – On the platform after the third wall run

29.Regulator – 300XP – Chapter 7: End of Line – Bomb Distribution Core – First tunnel, left path during the Light Cycle Sequences