Currently Being ModeratedSep 10, 2013 8:06 AM (in response to ckelleros1)
Thank you for using Apple Support Communities!
It sounds like you are trying to use the iCloud Backup function but cannot remember the password.
The password that it is asking for should be your iCloud Apple ID password. The same one you would log in with at www.icloud.com.
If you need asssistance resetting your Apple ID password you can do so at this website http://appleid.apple.com with the Reset Your Password link.
All the very best,