How to reset linksys pap2t ata

Hi,
I cannot dial **** because line is no longer lit. I believe the firmware is totally deleted now and I have written linksys. When i go through my router web interface, the pap2t is no longer shown. And when attempting to upgrade firmware, which I had done prior, the firmware window is entirely blank.

I have gone through many tribulations of resetting by unplugging ata, router, dsl box over and over again, but i can no longer get line1/line2 or a web interface, or a mac address or ip address generated by my router. Again, i believe this is because the firmware is no longer available on the ata.

Thanks for your response.