To add a journal to your course site, you need to be in the relevant content area that you wish to add your journal to.

Click on Tools and select Campus Pack journal from the drop down menu:

The section that follows allows you to customise your journal.  Give your journal a title and a brief description of what it is for/about:

Journals can be graded.  If you wish to grade your journals then you will need to check the Create Grade Book Entry box.  You will then be prompted to give your grade book entry an appropriate name, and allocate the number of points possible.  If you wish the grades to be visible to students then check this box:

When you have set the options, click on Add: