netflow exp ver to use,how to remove unused int,

Hi, i am testing the Netflow Analyzer EE 6.0.0

I have done the basic netflow configuration, and i am getting the information on the analyzer. I have 2 questions to ask.
1-->Intially i configured a router's (lets say router-X) 2 interfaces for netflow, and then due to some reason, i deleted the config (including export) and then reconfigured the device for 3 different interfaces. But now my dashboard shows the same router in 2 different categories, 1 new one, and 1 old one. How can i delete the old enteries from ALL DEVICES (not just from dashboard).
2-->On some of my interfaces, the IN traffic is stuck to 1 % from the start. I now that due to ingress nature of netflow, i shud only receive IN traffic, but i am not getting the clue as to why is this not showing accurate traffic status. I am using version 5 as export on all devices. and i have STM-1 link, Multilink, metroether links and all are showing 1%. Plz help