How do I get my old Library back on iTunes?

I wanted to make a new Library, and I did what the instructions said....

I don't know how to open my old library of songs, photos, and videos. Help please?!How do I get my old Library back on iTunes?
you messed up... try hitting the reset default ipod button on home page of itunes. you may have to rebuild your library- and start from scratch..in stead of making a new library, try next time to just add a playlist..its easier to just add stuff to the library and click a check mark in the little box beside each item you want to display from your itunes to show up on your player after you make your chooses hit the sync button. it then will do all the work and place items you choose on your player. if you choose to remove something from your ITUNES library, just right click on that item and when the little window pops up hit delete. then hit the sync to change the player, this will make it gone for good unless you re-add it to your library. Remember this; its better to (LEAVE THINGS IN YOUR LIBRARY), and just turn on the ones you wish to see. via the little checkmark.and hit sync...ITS EASY THIS WAY... HOPE THIS HELPED YOU OUT...How do I get my old Library back on iTunes?
Probably once you made a new library, your computer deleted all the songs and maybe is in your Recycling.



And its impossible I think to get it back without a backup disc.How do I get my old Library back on iTunes?
if the songs and stuff are still on ipod google ipod to comp. free