My family uses a single lap-top as our main internet connection and when we synch our respective I-pods, our I-tunes account seems to wipe-out our playlists, even though we have tried to create separate I-tune accounts. Help!!

Question

My family uses a single lap-top as our home computer and several of us have i-pods that we like to synch, using I-tunes.  Although we've tried to create separate I-tune accounts, our i-tunes playlists are getting wiped out when one of us deletes songs on our I-pod and it seems as though I-tunes is not distinguishing our distinct accounts and all i-pods are being synched to reflect the latest i-pod anyone makes on their respective account.  It appears as though our distinct I-tune accounts are not being loaded on our lap-top when we sign in and unfortunately, when we're in I-tunes, there is nothing to indicate what account is on the screen.  For all the glowing appraisals apple-related products usually receive, we are finding i-tunes and its interface with our respective i-pods to be a very, very frustrating experience. 
Can anyone shed some light on this for a family of non-techies?  Thx 
Pegger64  

Answer 1

You need to create separate Windows user accounts if you want to seperate the behaviour of iTunes for each user. That also means separate iTunes libraries for each user.
Windows is a multi-user operating system but you are not using it properly. iTunes is not a multi-user application. No application is. You can't expect it to treat different users differently when they are all using the same computer user account.
Do you understand what I mean?