So i play at work, now im at my house and im trying to get the gewar.kmz file. I think i have it but when i try to sign in (in google earth) i enter my username and pass but it doesnt work

That's strange, have you tried closing GE and opening it again or deleting the kmz and re downloading it?

EDIT: also make sure caps isn't on and you are entering the correct password

What version of windows and GE? Are you using internal browser or external?