How to delete my email account and facebook app from my blackberry curve?

[Carl]

ive sold my blackberry curve on ebay today and am just deleting all my data from the phone. however, my email address is registered to the phone and when i get emails it goes straight to the mobile, also i have the twitter and facebook apps on it and i just click on them and it opens my facebook straight up without logging in, how do i delete my account on these so the new person havent got my facebook and twitter?

[BabyCakes1X]

To delete the E-mail account go into the set up thingy where you set it up and click the BB button and it should say either delete or remove
For ur Facebook app go into the app world thing and click the BB button and delete

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