Add line between forums..

[GameWizard]

You will need to add that code in your FORUMHOME template in the appropriate area. Not sure how you will go about doing it, you can use CSS with the following:

border-bottom:1px #fff solid;

That code needs to be applied to the table that surrounds your 'topics' as you put it.

You can always also insert an image, or use a <hr> tag aswell. Whatever you feel will give you a better result.