I'm having trouble with the App Store
I tried updating my apps and stuff but it's my old email still even tho I changed it to a different one. Umm can anyone help ?
iPhone 5, iOS 7.0.4
What do you mean by 'old email' and 'changed it to a different one' ? Is it an account that you've since changed the primary email address on, or is it a completely different iTunes account ? If the former and then try logging out of your account on the phone by tapping on the id at teh bottom of the Featured tab in the App Store app and then log back in with the updated version of the account.
If the latter, i.e. a different iTunes account, then only the old account will be able to download updates to its apps - all content is tied to the account that downloaded it.