Hi brissie, I don't know whether you have figured out how to do it as no-one has replied.
2.6.1 How do I set the incoming call ringtone?
Incoming call ringtone: Touch > Settings > Sound > Phone ringtone.
In Messaging > Touch Menu > Settings > Select Ringtone (only 15 selections available).
I would imagine the same procedure would be used for Emails.
When in Emails > Touch Menu > Settings > etc.