the same thing happened to me. you think with all the time people put into litestep they would have at least explained installing themes better. I have downloaded about 5 different themes, and the only one that has worked was simplicity. not one of the themes actually had a readme file that i could follow through and get the theme to work. some didn't even have a readme. and all of them were highly popular ones. i've tryed unzipping everything everywhere and opening them every way i can figure out. the most i've gotten was ONE theme to show up a little bit. then it had a lot of errors and crashed.