I'm likely doing something wrong, since every time I try building these textures together, I get "invalid definitions" with the log file. Since I'm not taking the textures out of the game (you've already provided them) I'm trying to just skip to the first part of the instructions, and actually get them built together. I have no idea how to edit them in photoshop or anything like that.
Thanks for the replies mate, I've managed to do what you said and fix the filepaths. The tpf file is created, however, it doesn't show up in game, either the story or the training mode. The tpf file comes to 7.65 mb. Not sure what to do, since I'm so close to having it work lol.