Leke Ojikutu

I didnt say i solved an 80 puzzle, i said i programmed an 80 puzzle(u definitely know dat i can't prove a solution since u were not there)  and u can download my 80 puzzle, 63puzzle, 48puzzle and 35 puzzle as part of a complete suite i developed here:
http://www.lekeojikutu.com/index.php?option=com_content&view=article&id=79:elearning-studio&catid=46:products-and-services&Itemid=86

Below are the solutions to your problems as listed on http://www.ugcs.caltech.edu/~bokonobo/puzzle/puzzle.xhtml

Problem 1
['1', '4', '  ', '6', '5', '2', '3', '8', '7']
D L L D R U U L D D R R U L L D R U R D L L U U

Problem 2
['3', '2', '1', '6', '5', '8', '7', '4', '  ']
My attempt at the second problem shows that it cannot be rearranged to form
[' ','1'.'2','3','4','5','6','7','8']

Problem 3
['1', '4', '5', '6', '7', '2', '3;', '  ', '8']
U L D R U R U L D D R U U L L D R R D L L U U