IE 8 keeps getting the security popup about mixed secure and unsecure data

The security popup keeps happening in IE8 on the questions page because the two ads about the summit and stash are not fetched from a secured location (https). Can you please fix that. It is quite annoying.

http://dl.dropbox.com/u/5024553/Summit_Banner_AAC_239x146_a.png
http://dl.dropbox.com/u/5024553/stash-1.0-git-repository-management-for-the-enterprise-aac.png

I know you have a place since there is no issues with your gravators.

https://secure.gravatar.com/avatar/3554c987ff01f1e3fbdc1a0fca6a94cd?s=42&d=identicon&r=g