Cannot see anything. Just got a 78-8831 and set it up according to instructions. After

Question

Just got a 78-8831 and set it up according to instructions.  After inserting lens into eyepiece, I can't see anything at all.  Dont worry, I've removed the front cap from the the main telescope.

Something leads to believe I'm either missing something real fundamental or my telescope is broken.  Please helpI cannot see anything either. I've spoken with several people where it was bought and they assure me that everything is set up corretly. I cannot find and telephone number to call someone for assistance.