Mark, sorry about that. The solution I gave will work if you add a link from the normal add a resource form... i.e. the one your regular visitors will see, and not from the admin add link forms.
That said, you *could* add your links from the regular non-admin form, but you of course don't have all the options available to you, and you'll have to validate them as normal unless you have that option turned off too (Settings -> Build Options -> build_auto_validate). If you go this route, the contact email will drop into the username field in the Users table and into LinkOwner in the Links table when someone submits the form if the email address is not already registered as a User's username.
Or, you can just submit all your admin links using a single user... I believe the default username is 'admin'... will that not work for you for some reason?
Beyond that, you're looking at modifying one or more scripts that run the admin link-add bit. I'm new at LinksSQL too so unfortunately I can't tell you exactly what would need to be changed or where...
Matt Glaspie