Need Nokia 6102 Antenna Piece!

I recently bought a Nokia 6102 (My carrier is Cingular). I changed my cover, which requires the use of a little specially made screwdriver. Every since that, it caused the black piece, that covers the antenna & very top of the phone, to be loose. It kept popping off.

Now it's popped off & I've lost it. I contact Nokia only to be told, that their phones are not made to have the cover changed. It's third-party companies that sell covers. That I would have to send my entire phone into their repair center, to have the entire cover replaced back original, before I could get the antenna cover. And that it would be at my expense, since I'd taken the cover off in the first place, it's not covered under warranty.

I then asked if I could just go by Cingular & if maybe they could order the antenna cover piece, that snaps on, for that's all I need. They said no. They don't sell the individual pieces. Can anyone help? Does anyone know of a "third-party company" that may sell the individual pieces or does someone maybe have a Nokia 6102 that they no longer need, so I could buy this piece? It's all I need. I don't need to send the phone in for repair. I love the cover I've put on it. I just need the black antenna cover. If anyone can help, I'd appreciate it. Thank you!!