RSS Network Setting

I've added feeds yet they do not appear. The feeds are good yet do not appear? Is there a trick to getting them to post?

Do you want to used the rss feeds network? YES
How many word count to pull from your feeds? 75
Do you want to use the first rss network feed block? YES
Here is one of the feeds I am using:
feed://premium.wpmudev.org/wp-content/project-feed.php?type=newest&category=plugins

WP: 3.1.3
Edu Clean Child Theme 2.1.8