You need to flash the ZVD update.zip twice-- once for the baseband and once for the OS. If you've done that, your baseband should be ZVD, your SW version should be ZVD, and your Android version should be (I think) 2.2.2.
You need to root the phone and install a custom recovery in order to flash the Reborn ROM. Please follow the step-by-step instructions in the main part of the guide above, and be sure not to skip any steps. If optiauto-sfx.exe doesn't work the first time, try it a few times. What error message does it give?