Textures not transferring when importing models

Hey i have a feeling this is something very simple but i can't seem to figure it out. I'm using Google sketch-up and the warehouse for some of my models in an rpg i'm working on. I'm using the autodesk fbx converter because i do not have the pro version of sketch-up. When ever i add the asset (I'm making sure to do it from unity not explorer) the textures are no longer there. Again, sorry if this is really simple but i couldn't seem to figure it out on my own.