Please someone help me. I just want to read my book.

When i run the Decrypter It comes up with this " Error: error 3 while decompressing invalid code lengths set" Also i can't get the 'ignoblekey.pyw' to work. I keep getting the error 'error could not locate b&n reader installation.' I have the newest one so i think that's the problem there.
This sucks, i don't know what i'm doing.