GLITCH - please help

I can't save to my iTunes library.
When I click the SAVE button on the Library page of Limewire, the OPEN dialogue box comes up (looks identical to the box which comes up when I click OPEN)
This is driving me crazy , please can someone help me?
thanks

I used to be able to save to my iTunes library ... but it just isn't working any more. I'm sure this is me being useless, but can anyone help?

if you go into file on your i tunes then go to import then go to limewire shared documents then down load all your audio and happy days...