hi these are the setting that i use when importing a skin
Styles and templates
Download/upload styles
The E:\BAF STUFF\VBulletin\Skins\DarkVision is where the XML is on my comp

Sometimes change the display order try to make them alphabetically but not that important
also if you want users to access the skin like if you testing it out
Allow User Selection set to no
then press import
hope this helps you