deep fighter

I'm playing the game deep fighter from UbiSoft in german. I'm not able to get by the octopus down in the caves so I can't play on. Serching GameCopyWorld for a help I found two files: ####://www.gamecopyworld.com/cgi-bin/dl.cgi?deep_fighter_10_de.zip and ####://www.gamecopyworld.com/cgi-bin/dl.cgi?deep_fighter_de.zip which contain both a file "df.exe" thats fixed. As indicated I installed the game full and replaced the original file by the fixed one. But nothing happens. The game behaves as allways! I still can't get past the octopus!

Can anybody help me?