The supplement claims it is "the biggest puzzle ever". However, it only has 11 overlapping puzzles, whereas there are 13 in the following puzzle...
http://www.angelfire.com/games6/sudoku/SuperSamurai.pdf
I haven't done the Times puzzle myself (too tedious !), but their target time is only 115 minutes, so I don't expect it will be too hard !
Apologies - I have just spotted this thread http://forum.enjoysudoku.com/viewtopic.php?t=2959 in the Pappacom section (even though I suspect it is a non-Pappacom puzzle)