s'mores knowledge since this was something i needed to learn when I switched from an older version of blender to v 3.whatever I'm on.
So all my old files could be opened BUT the textures weren't loaded. Everything was grey like so:
It was indeed on the "texture" tab and yet, no textures to be found. I tried reloading the texutres in the UV editor, and some other things but alas no luck. Eventually I searched the right things to find a solution so here it is WEEE!! (under a cut b/c lotsa images)
Step 1: Click on the mesh of the texture you would like to replace.
Step 2: Go to the Materials tab.
Step 3: Click on 'Use Nodes' under the 'Surface' drop down menu.
Step 4: Click on the little dot next to Base Color
Can't take a screengrab of this, but a menu will pop up that has a bunch of options. Select 'Image Texture'
There will now be some extra things on it!
Step 5: Click the little photo that has the arrow next to it, and find your mesh's texture!
Step 6: Rejoice in the texture being back!
And then repeat for as many meshes as you might need to replace the texture of. :) If there's a faster way to do it I'd love to know, but this is how I managed to do it lol. It was necessary considering I have so so sO many meshes exported to pose around. And I don't want to just be staring at grey blobs u feel.