The account owner authority on the account was updated twice, which means you may have up to 3 passwords which could be used for recovery. Any owner key or owner key password going as far back as July 14th would allow you to recover the account through the account recovery form.
Last I heard, you were looking for your original signup password. Have you had any luck finding it?
If none of your passwords work:
- How did you generate each one?
- Are there any passwords you set by typing in manually?
If you entered in any passwords by hand (i.e. without copy and paste), it's very easy to be off by a character. If it was written down, it's very likely at least one letter was written (or read) incorrectly. If that's the case, the good news is that it may be possible to brute-force. If you know that one one of your passwords is off by no more than 1 or 2 characters, a trusted programmer can help you brute force the password.
Please note, the fact that there are any recovery tools on the STEEM blockchain is a big step forward. This is what can happen in the blockchain world when you lose your private keys: $7.5M Bitcoin fortune buried in landfill. This unforgiving rigidness may be alarming for the average user, but it must be carefully balanced with censorship resistance, because the power to recover is the power to control. So it is important to be very conservative in this respect, though I do expect the team to keep making strides in recovery methods.