Need help with DNS Resolution and a Request

I am currently having trouble with DNS resolution. I'm trying FA for possible use in a business setting to monitor web activity, VPN, etc. I am able to pull data from our Cisco Pix but the only IP that resolves to a name is the FA server (192.168.10.7) and the "Top URL's" graph says "No Data". My DNS/WINS/DHCP/Active Directory server runs on another machine (192.168.10.5). My intranet settings are set to 192.168.10.0 with a subnet mask of 255.255.255.0.

I am considering this product for use but DNS resolution HAS to be there. Any help would be greatly appreciated.

Request: I would like to see a report showing the Top 10 web users and the single site that they pulled the most bandwidth from. It would fit on one page and instantly tell you 1) Who your top web users are and 2) What site they spend most of their time on. (Hopefully you'd be able to exclude sites that are work related)

Thanks,

Brian