how can limewire delete stuff off my HD??

i was selecting a shared folder. i then went to delete that folder, thinking i was deleting it off the list of shared folders. nope. limewire deleted it completely off my freaking hard drive. it deleted my folder of 10+ GB of mp3's. how did it do that??? how can i get them back???? do you know how long it took me to download over 1000 mp3's on a dial-up connection and convert my favorite songs from over 300 cd's into mp3's???!!!! how do i get them back? what is the protocol limewire uses for deleting stuff like that???? i didn't know a program was capable of doing that.