bitlocker unlocking

Question

hi
this is my 1st post in this forum.i hope through this forum i can get rid of my bitlocker problem..
i have encrypted my D drive and  forgotten the password of my bitlocker and try xp windows and other version of windows 7 hoping that perhaps
this will solve my problem but all failed.
Now i have found my bitlocker recovery key but when i entered that it says that THE RECOVERY KEY YOU ENTERED IS INCORRECT