This should be what you are looking for. Although it wasn't that hard to find. The Tutorial Sections aren't that full. Edit:This does not use custom models though, but I think you don't mean it that way anyway.
Ok, I've solved just about everything and I'm down to the last few steps, only 2 things now:1. I don't understand what the author means by using WinMPQ to create a patch.2. I don't know where to put the blp. file, there isn't any directory called "textures" or "NPCBakedTextures" in the WoW folder or anywhere else in my computer for that matter.Help plz?
Ok, I'll google Ladix's MPQ thing.Now about the second, I understand I need to place .blp in baked textures file so the game can load up said texture, but I don't know where those directories are in my computer.For instance, for the dbc files, there was a folder in MANGOS called dbc, where (I assume) you're supposed to put them (the DBC files), so I did. But I have no idea where the folder I'm supposed to place the blp file is, what its name is, or how I can access it.
Use Ladix' MPQ Editor to create a new Patch, a .MPQ that contains every files that WoW is supposed to load up. Refer to the author for that (or some other tutorials about Patchs, etc. - easy to find), refer to Google for Ladix'.