Q: I cant sign in to imessage on my ipod touch

- What happens when you sign in? If error message what does it say?

- You said "I tried to use the same email I created initially, but it says taken". I never heard of a message like that with you try to sing into Messages or FaceTime but have when you try to create an new ID using a email address already associated with that email address.

- Can you sing into the iTunes and App Store sung the ID?

- Maybe:

Get help signing in to Messages, FaceTime, and Game Center