O thanks so much so the only way to get songs into my playlists is from the limewire library (in limewire itself) and to drag and drop it into my itunes library/Playlists in a separate screen correct?

After the song is in my itunes playlist can i delete it from my limewire library in the limewire program itself? Also some of my songs in my playlist do not appear in my library in itunes which I thought was supposed to contain every song is this okay?

You can try dragging from LW's library into iTunes, but this doesn't work for some people. I'm not sure why - maybe it depends on the OS & iTunes version used?
If dragging directly from LW's library doesn't work, add from your saved folder instead. Go to LW's library, click on Saved Files. Highlight a file & click Explore... your saved folder will open. You can drag from that folder into iTunes

You can delete files from LW's library after they've been added to the iTunes library (remember the iTunes playlist doesn't contain the music files) as long as the file is still saved somewhere on your computer. If you don't want the files in LW's library any more, you can save them into a different folder somewhere (make a new folder).
Or, in iTunes go Edit > Preferences > Advanced. Tick the box to copy files to iTunes Music folder when adding to library > ok. Now songs will be saved to your iTunes Music folder when you add them to the iTunes library & you can delete those files from LW's library.
Adding Content to iTunes
When you delete from LW's library - use the option to send files to the recycle bin... that way, you can restore the files if you run into problems!!

If you just delete files from LW's library & don't make sure that they're saved somewhere on your computer - iTunes won't be able to find the files & then you'll see the ! symbol

What format are the songs that iTunes won't play?

Yeah I have no idea why I cant drag directly from LW's library into iTunes, I am running on a Toshiba Labtop I bought from Best Buy using Windows XP. On another Macintosh computer I was able to do it which is why I was surprised I could not do it on this newer one.

Your second part I didn't completly understand is there a way so when I add it to my play list is also adds my library. I did what you said here " Or, in iTunes go Edit > Preferences > Advanced. Tick the box to copy files to iTunes Music folder when adding to library > ok. Now songs will be saved to your iTunes Music folder when you add them to the iTunes library & you can delete those files from LW's library.
Adding Content to iTunes "

Okay so I will just leave them in my limewire library I dont mind doing this , they will stay there forever correct , meaning there is no chance they will ever somehow delete by themselves? I will be adding them to them my ipod after Christmas and want to make sure everythign is all good by then.

The songs not playing are mp3 but I cant preview them when downloading them and when I click on it , it goes to the next song. Only 1 of them was something else like wma itunes tried to convert it but it would not work.

Ps:Thanks so much for all you help so far the forums are great.

Maybe the mp3s that won't play are junk... it sounds to me like they might be. Do the file sizes look ok? Try doing a Bitzi lookup on the files & see if anyone else has rated them as useless (search for the file name again & when you see a file with a checked paper icon, that's one that you've downloaded).
How to use Bitzi

See if you can download a different version of the files. Try using the 'All Types' search & look for artist or album, rather than song title. Go for a file with 10 sources or less, or even a single modem source.

That LW playlist that you see in iTunes is completely independant of your library (if that's what you mean). That playlist only shows in iTunes if you have iTunes sharing on within your LW options (tools > options > iTunes). If you have iTunes sharing unticked in LW's options, you won't see that 'your name's limewire tunes' list in iTunes.

If you mean that you want to make a new playlist within iTunes - files have to be added to iTunes library first... only then can you make a playlist.

It's probably just as easy for you to have the files showing in your LW library (I do). They have to be somewhere on your computer, so your saved or shared folder is as good a place as any
As long as you don't delete the files from LW's library then they sould never disappear. But just remember - there's always the chance that someone else might use your computer one day & accidentally delete things. Or one day you might end up with some virus & lose files.

Always back up your files, just in case