well i have limewire but cant connect the brick wall is in front of the globe and theres only one green bar. but my friend has limewire also and she has all green bars and can download and everything but theres a brick wall in front of the globe. Can anyone explain this ???

It means either your software firewall on your computer or the internal NAT firewall on your modem/router is blocking. You need to configure them. Best advice is to browse thru this: Connection problems? Check here first! (click on link)

ie: Section 1 deals with your computer software firewall, section 2 deals with setting up UPnP if your connection device has this option or has a reliable implementation of the technology, section 3 is about opening a port manually thru the device; port forwarding. The latter is generally the safest if you have a connection device with an internal NAT firewall.