Broken Screen the music plays and the its not frozen but the screen itself it faded white with lines going across, what is wrong with it?

If there isn't any display change when you attempt the access different menus and folders and especially if it doesn't light up there is a good chance that you cracked your screen (permanent damage). This does not mean that your Zen will not work, it should in fact work normally except that you will not be able to see anything. Non-touch screen audio devices work via buttons and internal programing so the screen cracking will not affect the devices ability to play music.

However if the screen is truly cracked, it will not right itself and can only be fixed by a professional, which usually means $$ for the time and the new screen. I don't know what kind of support Creative has but depending on how new your device is the problem might fall under any warranty.

Unfortunately your problem sounds rather permanent.