This is what you do. You have to go to the custom folder in the tf file and make a new sub-folder names custom_things, or at least that's what I did. After that, you make 5 files: Maps, Materials, Models, Resource, and Scripts. For any file that isn't vpk, move to the respective folder (I.E. trade_celshade_r2 goes into the Maps folder in tf/custom/custom_things/Maps). For any vpk files, you move them to the custom folder (tf/custom) and then drop it down. Any further downloads will be put into those folders I've specified.