I don’t think Tunebite hates you, but the Tunebite staff can be a little slippery and tricky sometimes.
I had the same problem you did with the serial number. I could never get my old registered version to record the first few seconds of a song–I asked them for tech support/help but they never responded. that was about a year ago.
when I saw they had released a new version I downloaded it to see if it corrected the old problem. it did and I was very happy!
but when I went to register it and cut and pasted in my serial number it would not accept it. so I sent an email to Tunebite asking for help.
surprisingly, they sent me a response the very next day. but it said that my old serial number would only work for the 22.214.171.124 version and not for the 2.x versions; and that I would have to buy the new version!!! I was pissed.
I responded to them that my 126.96.36.199 version had never worked properly and they wouldn’t help me with it, so I considered the 2.x version an update–not an upgrade.
surprisingly (again), they responded very quicky and simply gave me a new serial number that DID unlock the 2.x version.
whether this may work for you, I do not know. I am happy with the prompt responses from Tunebite lately, but I still think they are a little shady and I don’t quite trust them.
and now I am getting an error message on some songs I am dubbing to Tunebite that says “error – cannot find specified path”. In fact, that’s how I found and joined this message board–I was looking for a solution to this error. I still am looking! if anyone knows what the problem is, please tell me! Thanks.