I dont realy know what I am doing at least I dont think i do... my friend can download things from my lime wire but when I try to load songs from hers it says cannont browse host.... Can some one please tell me how to fix that problem?

Do either of you see a brick wall in front of the blue world icon at the bottom of LW's interface? If yes then that is probably why. See the sections here about firewalls (software & hardware firewalls) Connection problems? Check here first! (click on link) I think it may also help if you have chat enabled, & have free upload & download slots & bandwidth.