1. It will be either of these 3 places if you are using Windows:
C:\Documents and Settings\*yourusername*\
Application Data\limewire
C:/Documents And Settings/your_username/.limewire
C:\My Documents\.limewire
Application Data is a "Hidden folder" 2. System details - help us to help you (click on blue link) This is the 2nd time you have been asked.