I have tried to install the HW 1 and 2 into a Joomla 1.7.2, CB 1.7/CB Subs site and get "direct access not allowed" when I try to access the config of it.

If I click the cross to publish it from the plugins view I get a blank screen and the error logs show "PHP Parse error: syntax error, unexpected $end" for the last line of the code which is a close tag ?>

I also tried it on a non CB Subs installation and the plugin published ok by clicking the cross in the plugins view but still have the direct access.

I have the same error.
If somebody knew a answer please Post it i really need it.

Which hello world you are trying? Look in the forum you'll find the actual one (as answer to my question there's a file)