Ok so i done alomst 4 hours of gecking saved and turned off,

came back to it today and accidently loaded up the fallout3.esm and my .esp file
together without thinking i loaded up where my mod was and it had ALL been reset,
si i closed the geck reopened it and tried to load my .esp file on its own like normal
and its been reset back to what the place was like in the original fallout3.esm
is there anyway to get what i done back or have i made i really lame error thats
irreversible?

Please helppp (:

Are you certain your changes have been lost? Loading your esp will always load the fallout3.esm aswell as that is the master for your esp file. But what you changed really should be there, if you saved to an esp file I can't see that GECK would revert your changes. Of course I'm not as experienced with the GECK as most on here but if your changes were saved they really should still be there, but as I say the default fallout3.esm will load aswell.

all my changes are gone :/

If you did not open the GECK as administrator, and are on Windows Vista, or 7, then when you saved it saw the GECK as a virus trying to do something bad, and blocked the save. If this is the case, all your work is irreversably lost, and you have to start over :/ Did you forget to run it as admin?

Is there anything in C:\Program Files\Bethesda Softworks\Fallout 3\Data\Backup ?

Yes there is i'll try those backup files thanks (:

quick noob question how do i open the backup files (;

Nevermind got it all back Gunmaster95 You are a legend sir.

So running as admin fixed it? Glad I could help. :thumbsup: