When i try pick a new nif for a weapon it says invalid directory, does anyone have any idea why that is i would like to ad my own weapon into the game would be very helpfull thanks. Its when im using Tes construction set.

Nif files need to be in Oblivion\Data\Meshes or a subdirectory of it. You can't access nif files from somewhere else on your hd.

wow it was that easy thanks you very much