Go to Administration Panel -> Settings -> Permalinks
Change the default setting to the one that suits your needs, in my case I use Custom Structure with this value “/%category%/%postname%.html”
If your theme does not support favicon you should modify your theme to add this line in the html head tag
<head>
...
<link href="URL_PATH/favicon.ico" rel="icon" type="image/x-icon" />
...
</head>
Did you configure Hostgator DNS servers in GoDaddy for that domain?