WPMU-Nelo & Frontpage Links

Hey,

Question 1
On the Nelo custom frontpage there are Blog-Box left, middle and right.

Now, if I create a new page, these boxes also appear there. Is there any way to show these only on the homepage?

Question 2
Also, the images of Blog-Box left, middle and right can be linked to something.

How do I make sure these open in a new window?

Allright, thanks.