I had the same problem. THEN I noticed that while my USB cord was in, (set for mass storage) the SD card is not accessible. I downloaded a theme to my computer. The computer theme was a larger file then the one on my phone, Hmmnn. SO, I deleted the zip on the phone, transferred the file from computer to phone, followed the instructions to install a theme from boot strapper, it worked!
I downloaded from the link that was posted. It worked fine. Rocking the BWC theme now! I like it. I might try out limeslice tho. Just seeing my options. Thanks for the help y'all! It is greatly appreciated.