profile and external link

I originally joined Design Contest in 2004 and recently reactivated my membership. I have some old information that is obsolete,:and I can't figure out how to delete it. The external link appearing on my forum posts is for an old website that no longer exists. When I recently rejoined, I had an old avatar I don't want to use. I managed to delete that, but now I have another old avatar that I may not want to keep and can't figure out how to delete it.

Also on my profile page, it shows 0 entries, but I have entered a contest this week.

HI there

  OUr new site update just  a little over a week ago has a few hiccups, our developers are working to resolve these issues,  Please click on your profil you should be able to enter and edit info there and your cover image. Your setting should have the avatar option 

Thank you for being patient and understanding