scottidog:
The blinking red light is caused by two problems:
1. The battery is completely discharged. You need to recharge it with other phone(because your phone cannot do that right now). Or put another SE phone's battery to your phone. No need to be the same model. If the battery can be put to your phone then it is okay, and it will work...
2. The EROM is damaged. In this case check this tutorial: REPAIRING EROM GUIDES for most sonyericsson phones
CryptoN:
I'm glad that you succeded to unlock your phone :)