Yahoo Site Explorer Bug Wrongly Handling https/http

[ariese]

Hi,

I have site that has some CGI scripts that use https. Yahoo has picked up a link from somewhere and thinks I have two sub domains http://www.example.com and https://www.example.com.

When I try to delete https://www.example.com in SiteExplorer it then wants to delete all of my site, ie all of the pages that use http as well as the https://www.example.com index.

As a result of this Yahoo seems to be applying a dupe penalty and my site, which used to be at #1 is now around #50 for the main target keyword term.

Is there a simple 301 redirect solution that will sort this out without harming my ranking elsewhere, I'm #2 on Google for this term, or am I better off allowing Yahoo to wither on the vine?

Many thanks for any pointers.