Sorry if this is already what you've done... but...
The thing to watch here, as mickyflinn is eluding to. Is when the OCZ FAQ for this flash says "Shutdown and restart the system." It does actually mean "shutdown and hence remove power from the drive" and not just to "reboot the PC". Even doing this, I found that I then had to "restart the PC" again, to get the first flash from 1.3 to 1.4 to take (IE. appear).
Good luck.
PS. If further problems. Then a quick post in the Vertex 4 sub-forum over at OCZ might help you.
PPS. Though I see that you've got it sorted now. Good stuff. There's been quite a few people fall into this trap (see the aforementioned OCZ forum). Their instructions could maybe have been a bit better worded.