Is Download Insight working correctly?

NIS 2010 17.8.0.5

Vista Home Premium 32 bit with Vista SP2

 

I'm concerned that the Download insight function of my NIS is not working properly

 

I just downloaded the newest version update of malwarebytes, but there is no indication on download insight the the file was checked and approved

IEarlier, I had also attempted to download the upgrade for iTunes v 10.2  Along with that came bonjour and a few other apple items. But none of these showed in the download insight log

 

A few days ago, I downloaded the NRT and that DOES show on the download insight log and gave me a"it's ok approval"

So why are some items not being checked?