Accounts are fine, you aren't registering correctly. I just registered, like literally 30 seconds ago, it said Sucessfully registered, and I logged in with the account immediately with no error.
Please make sure when registering you follow the rules to the right of the text box. For example, one of the biggest mistakes is that people don't make their answer to their question at least 10 letters/numbers long.
Also, the register page is a tad incorrect at the first post. Here is the correct URL:
[Only registered and activated users can see links. Click Here To Register...]