You might get some help if your second post on talk.maemo.org includes a clear copy of your proof of legitimate ownership of the device you wish to unlock. Absent that sort of documentation, taken with your newness to the forum, you are unlikely to get the code from here. The lock code is there to protect the information of the owner from unwanted prying, at the least. Imagine how you'd feel if you found your significant other snooping through what you thought was your locked device. Worse, imagine if your locked N900 was stolen and the thief was able to get it functional again by joining the forum and getting the code - just like that!