Thanks for the reply. It seems that my batteries are charging. Today I tried to plug in my phone with a brand new USB cable I got in the mail. It showed the SONY ERICSSON boot screen but nothing else. I unplugged it and it stayed in that screen for about ten minutes. Eventually I had to remove the battery to power it off. Now it will not show the boot screen again.
My computer said "USB DEVICE NOT RECOGNISED" and setools v1.11 (from your 4shared folder) could not identify the device.
Even if I could get the phone to be recognized, I don't think I would know what to do next.