I don't know how to change email adress for iCloud in my iPod.
What do you mean by change?
iCloud: Account troubleshooting
Creating an iCloud account: Frequently Asked Questions
iCloud: About your icloud.com, me.com, and mac.com email addresses
In my iPod, from Settings | iCloud. Then it asks me to login. But I don't remember my password. And I would like to change the AppleID to my new email address. How can I change it? Thanks!
Changing the email address for your account is included here:
Frequently Asked Questions About Apple ID
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