noy really sure..help please

[max cady]

hi there,
I have just downloaded limewire and everything looks ok except at the bottom left of coner only one bar is green others are red..noting a bad or slow connection i think!...then beside it a icon which denotes a firewall has been detected is present! is this what is causing my problems..cause no matter what i try to download it just wont...i type in the content ,it goes through its usual spinning[limewire logo] but nothing comes up in the box to be downloaded..its very frustating as i had lime wire last year and it was brilliant..i have a new computer now? does that matter? i would be great full for any help thanks steve stephenmackin2003@yahoo.com