That skin was made with Artisteer 3.1 before IE 10 was born so it could very well have some issues.
The first thing to do is make sure you have applied the Important Skin Changes especially enabling the the jquery migrate plugin but also any other things since your previous version of mojoPortal (I'm assuming you upgraded since the drag and drop file stuff is in the latest version).
Other things you could consider doing:
1. Purchase Artisteer and then get the .artx file for that skin from the ArtisteerFiles.zip on our codeplex download page, then you could re-export the design using Artisteer 4.1 which should be more compatible with IE 10
2. Maybe try one of the newer Artisteer skins that ship with the latest version of mojoPortal, you can copy them from the /Data/skins folder to to /Data/Sites/[SiteID]/skins to make them available in the site (Where SiteID is usually 1 unless using a multi site installation).
3. If all else fails you can force IE to use compatibility mode by adding a meta setting in the layout.master file as in these examples:
<meta http-equiv="X-UA-Compatible" content="IE=8">
<meta http-equiv="X-UA-Compatible" content="IE=9">
The first one forces IE to use IE 8 compatibility and the second one forces IE 9 compatibility, so you don't have to depend on the user doing it.
However drag and drop depends on html 5 techniques and only works in modern browsers such as IE 10 so the first 2 options are the best bet in my opinion.
Hope that helps,