After running through minefield, Minesweeping ("I'M GONNA NEED A SWEEPER!") and avoiding having my head blown off by a delusional wasteland-faring man i levelled up. everything went fine until i hit DONE after selecting my perk, when Fallout.exe crashed. Can anyone help me with this?

Current Mod List, as noted by BOSS w/ unactive ESPs removed-----------------------------------------------------------    Better Oblivion Sorting Software for Fallout 3                          Load Order Utility                           (c) Random007 & the BOSS development team, 2009            Some rights reserved.                                      CC Attribution-Noncommercial-No Derivative Works 3.0       http://creativecommons.org/licenses/by-nc-nd/3.0/          v1.0 (February 2010)                                    -----------------------------------------------------------Master .ESM date: Tue Jan 01 01:00:00 2008FOOK2 not detected.------------------------------------Recognised and re-ordered mod files:------------------------------------Anchorage.esmThePitt.esmBrokenSteel.esm  . Bashed Patch tag suggestion:  {{BASH: Actors.AIPackages}}PointLookout.esmZeta.esmMart's Mutant Mod.esm  . Bashed Patch tag suggestion:  {{BASH: Invent,Relations,Delev}}Companion Core.esmCompanion Share & Recruit.esm  . Requires:  Companion Core.esmRobCo Certified v2.esm  . Requires:  Companion Core.esmDarNifiedUIF3.espGalaxyNewsRadio100[M].esp  . Conflicts with:  GalaxyNewsRadioXXX[M].espGalaxyNewsRadio80[M].esp  . Conflicts with:  GalaxyNewsRadioXXX[M].espGalaxyNewsRadio60[M].esp  . Conflicts with:  GalaxyNewsRadioXXX[M].espGalaxyNewsRadio40[M].esp  . Conflicts with:  GalaxyNewsRadioXXX[M].espGalaxyNewsRadio20[M].esp  . Conflicts with:  GalaxyNewsRadioXXX[M].espMarkB50K_Wasteland_Patrols.esp  . Requires:  Anchorage.ESM  . Requires:  ThePitt.ESM  . Requires:  BrokenSteel.ESM  . Requires:  PointLookout.esmDCInteriors_Georgtown.espDCInteriors_SewardSq.espDCInteriors_Mason.espDCInteriors_LEnfntPl.espPowered Power Armor.espCompanion Core DLC Addon.esp  . Requires:  Companion Core.esm  . Requires:  Anchorage.ESM  . Requires:  ThePitt.ESM  . Requires:  BrokenSteel.ESM  . Requires:  PointLookout.esm  . Requires:  Zeta.esmRobCo Certified v2 Zeta Addon.esp  . Requires:  RobCo Certified v2.esmMart's Mutant Mod.esp  . Bashed Patch tag suggestion:  {{BASH: Delev}}  . Requires:  Mart's Mutant Mod.esmMart's Mutant Mod - DLC Anchorage.esp  . Requires:  Anchorage.ESMMart's Mutant Mod - DLC The Pitt.esp  . Bashed Patch tag suggestion:  {{BASH: Delev}}  . Requires:  ThePitt.ESMMart's Mutant Mod - DLC Broken Steel.esp  . Bashed Patch tag suggestion:  {{BASH: Delev,Relev}}  . Requires:  BrokenSteel.ESMMart's Mutant Mod - DLC Point Lookout.esp  . Bashed Patch tag suggestion:  {{BASH: Delev,Relev}}  . Requires:  PointLookout.ESMMart's Mutant Mod - DLC Zeta.esp  . Requires:  Zeta.ESMMart's Mutant Mod - Hunting & Looting.espMart's Mutant Mod - Natural Selection.esp  . Bashed Patch tag suggestion:  {{BASH: Relations}}Mart's Mutant Mod - Tougher Traders.esp  . Bashed Patch tag suggestion:  {{BASH: Actors.Stats,Factions,Relations}}Mart's Mutant Mod - Mutant Mod Menu.espFellout-pipboylight.espFellout-Full.esp  . Conflicts with:  Fellout-SOTD.esp  . Note:  Do not use with latest FOOK2, it is already integrated.Fellout-Anchorage.esp  . Requires:  Anchorage.esm  . Note:  Do not use with latest FOOK2, it is already integrated.Fellout-BrokenSteel.esp  . Requires:  BrokenSteel.esm  . Note:  Do not use with latest FOOK2, it is already integrated.Fellout-PointLookout.esp  . Requires:  PointLookout.esm  . Note:  Do not use with latest FOOK2, it is already integrated.Fellout-Zeta.esp  . Note:  Do not use with latest FOOK2, it is already integrated.-----------------------------------------------------------------Unrecognised mod files:                                          Reorder these by hand using your favourite mod ordering utility. -----------------------------------------------------------------Unknown mod file: tubunarVanilla.espUnknown mod file: PPA - Broken Steel.espUnknown mod file: PPA - Operation Anchorage.esp-----------------------------------------------------------Done.

Update to the latest version of PPA. You'll also need to make a clean save, otherwise the fix won't work.

http://fallout3nexus.com/downloads/file.php?id=13361

I haven't managed to encounter this bug myself, I just fixed it by using other people's save games, so I'm not sure about needing to do a clean save. What you should definitely do though when installing the PPA update is first take off power armor and re-save before installing the new files.