Safari Auto Fill problem At some point I misspelled my name when I typed in my email address to one of the those log in boxes.

Now the misspelling always comes up and fills in and I have to delete it and start over. 

I have tried clearing history and cookies and the auto fill feature but it still happens.

How can I clear this and why will it not use my correct one after I type it in.
You can edit all of your AutoFill information under Safari / Preferences / AutoFill. 

As your issue is with your contact information, you can, even, change it directly from your card in the Address Book application, as there is where it gets this information from.