i have FS2004 and i am having trouble seeing traffic. I have the CSL and still i can not see any traffic. Any idea why this happens?

First of all have you got the CSL folder in the correct location fs9aircraftcsl ?Second, are you sure there is traffic near you? If there is traffic nearby you should see blips on the SB TCAS screen, no blips, no traffic to see.If at an airport and you have TCAS blips probably showing a caution msg they should be on the ground near you, if that is the case then in spot view you should be able to hear their engines.If you go into top-down view can you see any aircraft callsigns near you? I think you need 'Show aircraft labels' ticked in 'Traffic settings' to see callsigns.Rgds