If you have the public download link for the icon pack, please post it here.
Per-user shell icons configuration is stored in a different registry key. All the values in the right pane of the 'Shell icons' key can be deleted. The Alienware theme is listed below from Dell's site. One of the locations where the icons are modified is in the 'Shell icons' registry key documented in this article. These are good looking and installed fine, however my system slowed some after installing and I had to install the Alienware Theme from dell and restore windows look to Windows default.
PC Related - Wallpapers, login screens, Avatars, etc. All are tested and work on Windows 7 platform - 64bit
