blustar - 2006-12-09

I want to import my own textures and convert them to materials to apply them to appropriate surfaces. I used import image, selected jpg and then clicked ok. But when I go to use them, via new material, I get only a 'white square' on the list and no texture. Is there something else I need to do to get them on as texture? And how can I 'see' if they actually imported in the first place.? Thanks.