you need to create an additional login account on your pc for your daughter. each time she wants to sync her ipod she needs to log in to her pc account.
you will need to do similar for itunes too.
Hi I had the same query. Do you mean I need to download Itunes twice? I have it once on my laptop already and have created my own music files. I have separate log ins for us both but that only seems to apply to the itunes shop.