kevo2k7 mate, Limewire is downloaded from here:
http://www.limewire.com/
You can download any songs regardless of the type, they just take different lengths of time.
You should also look for a higher bit rate, as they sound better, and look for the sources. The more sources the better, as they download quicker.
Once they've downloaded onto the HDD, and providing you have a blank writable disk in the drive, select the tracks you want to burn, then press 'Burn' on the top bar below the navigation and search bar. They add up into a list, then in the toolbar, a icon comes up, asking whether you want to burn, then click OK, the drive should burn the tracks on.
hope this helps