Creative zen mozaic no boot (firmware problem and returns to recovery mode)

[shibi]

Hi, after trying to apply your tutorial to install rockbox on my creative zen mozaic it doesn't boot anymore and returns automatically to recovery mode.
Before I did the [clean up] [format all] and the [reload Firmware] and now I can't use it anymore.
When I do the [reload Firmware] it tells me that firmware will be erased. Reload it via USB. I did [YES] and now my computer doesn't recognize my zen anymore. I tried with windows xp on virtualbox and lubuntu and it shows only in lubuntu as an MPT and it doesn't allow me to copy anything inside of it. So, now I don't know how I can reload a new firmware by usb if any operative system recognizes it.

Please take a moment to help me. Thank you.