[bparvin]

I wouldn't give up on the USB port. My phone wouldn't sync with computer anymore either after an incident with water. =)

I put the phone into the bootloader screen. (Reset phone, hold Power and Volume down)

Plug in USB and the text at the bottom of phone should change from "Serial" to "USB" (You might have to play with the usb cord and wait awhile. I've had to wait up to 15 minutes with a faulty usb port.

Once you get the "USB" text displayed go ahead and flash you stock/shipped ROM.

Even you are not in Active Sync, it will still flash your ROM correctly.
Another thing you can do is Hard reset your phone (Reset, Hold power, volume down and Center button. If it gets past your boot screen and starts customization you should be able to connect thru active sync and rename your diamimg-stock.nbh file.

Hope one of these works for you.