IIS and SSL problem. Need advice

[The Tradition]

We have a web server that is home to several sites. Some of the sites have SSL certificates and some don't. If a user types in https:// on one of our sites that does not have a certificate, it will redirect it to a site that does have one.

For example, https://www.atlanticsouthernbank.com/ does not have a certificate, but the certificat is it assigned is for a Middle GA Ambulance site, which we host as well and it does have a certificate.

Is there a setting within IIS that will correct this problem?

[Horus_Kol]

I'm sorry - I'm a little confused by this sentence:
For example, https://www.atlanticsouthernbank.com/ does not have a certificate, but the certificat is it assigned is for a Middle GA Ambulance site, which we host as well and it does have a certificate.
could you clarify that one for us?

also - how are you seperating the sites out (are the domains registered against different IP addresses)?

[afterburn]

Sounds like you are using Host headers instead of static IP Addresses.

I could be wrong.

This happens if you allow in the default config to use port 443. Otherwise it is fine.