Please Help with Skydome

This may be a second post; but I honestly haven’t had the best of luck with any technology today and about to break my computer. I wrote a post named Building BGE Sky, but I can’t find it on the site now.
Anyways, to make this short because I don’t want to go through the apologetic scenario again;
Want to do more with video games than play them, so I decided to make my own. Learning this engine by youtube tutorials but nothing is ending up right on my end.
Trying to make a spherical map for the sky.
In Blender Game and changed viewpoint to textured.
Created new material and selected shadeless.
Created new texture and uploaded image.

Sphere just turns blue and the image is not loading… Any help would be very much appreciated!

Thank you!

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