Those should just be warnings & you should be able to use them in game with those warnings.
If you want to fix them, open them up for edit & remove the obsolete lines from the config file. For the texture one, you can open the tga file in your favorite photo editing software & add a little dark grey in with the black... really in '19 you could remove the shadow stuff as '19 generate it's own, but that's a bit more involved.
peter