Hi Ricky,
You can safely remove this:
<defaultDocument>
<files>
<remove value="Default.aspx"/>
<add value="Default.aspx"/>
</files>
</defaultDocument>
It seems to be causing an error on your site right now.
let me know when you remove that and the site is working and I'll visit your site and see what I can determine about the skin problem.
Hope that helps,
Joe