I cant delete a song???!!!!

If you are using Windows... I occasionally find I cannot delete a song from within Limewire.... I can usually correct this by completely exiting limewire and re-starting then I am able to delete.

Also did you try hitting the refresh button -- I occasionally find Limewire displays a song in the library that I had moved.

I may have missed an important point... which window are you trying to delete a song from?