Sure, wait for the next official release of LW or else, get the LW beta now http://www.limewire.com/english/content/beta.shtml

If deleting from the Library, the files will go to the trash/recycle bin, instead of being automatically deleted.

If you're using iTunes, you should know by now how to add them properly. Drag & drop them onto the iTunes music/Library icon at the top of the playlists so that iTunes will add them to its own music library. After you've succeeded once, you will never look back.

Or did I misunderstand your question/problem?