Hi,
You are right I forgot about making an option for those IE specific things to be loaded locally. I will fix that for the next release.
For now you might try removing this from the layout.master of your skin.
<portal:IEStyleIncludes id="IEStyleIncludes1" runat="server" IncludeHtml5Script="true" />
and in its place paste this:
<!--[if lt IE 7]>
<link rel="stylesheet" href="http://mojoportal.quintsoft.com.au/Data/Sites/1/skins/dcarter-sq2/IESpecific.css" type="text/css" id="IEMenuCSS" />
<![endif]-->
<!--[if IE 7]>
<link rel="stylesheet" href="http://mojoportal.quintsoft.com.au/Data/Sites/1/skins/dcarter-sq2/IE7Specific.css" type="text/css" id="IE7MenuCSS" />
<![endif]-->
Hope it helps,
Joe