I'm starting out with modding KotOR, and I have been following along with this tutorial: http://knightsoftheoldrepublic.filefront.com/info/tutID9)
I tried to make a new item to put in the game. But after I save it, I open up the folder where it should be, and it's not there.

http://img11.imageshack.us/img11/9283/bdcam20110525075918965.jpg)

I go back into the editor to save again, and it says it's there.

http://img855.imageshack.us/img855/201/bdcam20110525075846380.jpg)

I have a feeling that it has something to do with the fact that I use Win7. Does anyone know what could be the problem?

In your first picture..on the blue menu bar, click 'Compatability Files'...Win7 must be similar to Vista. I don't know why but whenever I save or download a file from let's say KotorTool directly to my Kotor game file override or modules folder, it saves it to a duplicate override or module file located somewhere else, I forget where. When I first started modding this screwed me up all the time. Just be aware.

In your first picture..on the blue menu bar, click 'Compatability Files'...Win7 must be similar to Vista. I don't know why but whenever I save or download a file from let's say KotorTool directly to my Kotor game file override or modules folder, it saves it to a duplicate override or module file located somewhere else, I forget where. When I first started modding this screwed me up all the time. Just be aware.

OMG Thanks for the warning