PLEASE HELP - Unable to decrypt encrypted files

[John_007 0]

I am unable to decrypt some of the files I have encrypted with MEO Encryption software. As the original unencrypted files were deleted, the now encrypted files are completely unrecoverable.

When I use the correct key for decryption, the process crashes after a short while and says x file already exists, and I am offered the option to Overwrite, No, or Cancel. No matter what option I choose, the decryption process freezes and I have to terminate the program to exit. 

Can somebody please help me find a solution to this. I badly need those files.

The same bug was previously reported with an earlier version: http://nch.invisionzone.com/topic/22675-file-already-exists-error/

Can anything be done to recover my files? 

Thanks