Well done
2 more weeks and you'll be an expert
As for textures not appearing, have you loade the image as well into the "Texture buttons"?
Press "F6", and as long as the mesh has a material, you'll see another area called "Texture"
Click Add New
name it with your shell prefix, s###sometexture (no extension here in the button)
In the "texture type" drop down menu,
select image
scroll to the other end of this window pane till you find the area named "Image"
Click on the button and find your image
This image also needs your shell prefix, s###someimage.tga (this area needs the suffix and can be any picture type and not just a tga)
I use tga mostly as it gives the best picture quality as well as an alpha channel for transparencies, jpg gives the best compression but you lose quality in the image