I tried to find limewire on the all- programs, and the limewire folder was empty,

try to find the un-installer here
go to
my computer, then click on the C drive, then click on program files then choose the limewire folder from that directory and you will see the un-installer,
so the path will be
My computer, - C Drive, - program files, - limewire, - then the uninstaller file.
make sure you have downloaded the installation file to re-install limewire before you follow these steps, and always keep a copy of it just in case
you are not the main user on your computer you are kimmy so you do not have the permission to view or un-install i think ?
Hope this helps