For example, I got the geck today, and went straight to work. I created a custom weapon (to start of simple). When I finished I saved it into C:\Program Files\Bethesda Softworks\Fallout 3\Data (as an .esp file of course). When I exited the geck and opened fallout 3, clicked data files, and it wasn't there. I then went to the target location, and surprise surprise it wasn't there at all. It's not hidden, it's not misplaced. The computer thinks its there when I search for it, but for some reason it doesn't show up to the game, or in its directory.
Has anybody else had this problem? If so what did you do to fix it? Is it possible that I installed fallout incorrectly initially (standard vs. custom install)?
TL;DR: I made a .esp, saved it properly (many times, and it won't let you do it any other way) and it doesn't appear in >>>/Fallout 3/Data through the directory or as the game sees it. What should I do to remedy this?