I'm getting the same message as you (not allowed to log in at this time).
Update: At login their message says that they are extending the server's downtime to 12:00am. That's Pacific time, so those in the east have to wait until 3:00am. Basically, the answer is that the server is still down.
From what I can remember I think PST is -8 GMT
I believe that time zone is for British Columbia, Canada
which is 1 hour behind my time here in Alberta, guess I'll pick up testing this thing again tomorrow than
I hope this is a error, i still have not been able to log in.
Just bought it on direct2drive.
SAVE THIS E-MAIL Thank you for purchasing Star Trek Online. To participate in the Open Beta you will
need the key below: Key: xxxxxxxxxxxxxxxxxxxxxxxxx
Please go to http://www.startrekonline.com/betacard and follow the listed instructions to be able to redeem your beta key to guarantee your access to the Star Trek Online Open Beta.
*** Please note: Open Beta will begin January 12, 2010 (subject to change).
You will be notified by email when the file is ready to download.