Are you sure she's activated the account?
When you register an email is sent with a link; click the link and the account should be acitvated. If she didn't get it, try checking her spam folder.
After its activated, she should be set to go.
Only other thing is that she wouldn't have been able to start new threaRAB for the first 24hrs, but it shouldn't be that way for posting - Maybe she got confused between the two?
So not sure. Maybe log out, log in and try posting in here or something? If its verified, then I don't know what the problem could be.
Edit: there's a box in the bottom left or the screen that tells you what you can do: check that out and see what it says. should be something like
You may post new threaRAB
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