Can't get texture to show up on my object

[micheus]

Hi Arisen1, welcome.

Well, I don't know what exactly you did, but something is really wrong.
Looking into your file I saw two default materials (default and default2). That happens because your default material is different of mine. So, it's a good idea do not change the default material.

That said, it seems your default material was assigned to the object and then the previous textured material was deleted.

The object still preserves the UV mapping, so it's easy to assign a new material to it (select the whole object, in Face mode use the context option Material - RMB option) and then assign the image to it ("hammer texture.tga") - just drag and drop it over the new material you is going to create.

Occasionally, you would not see the texture applied to the object in the geometry window - if any View option was not intentionally disabled, maybe you can be experiencing a video card driver issue (very common, unfortunately) or it's just because you have used a kind of image that have a transparent channel (like tga or png):