The installation process is very simple. You just need to execute the installer and follow the instructions to transform your OS.
When installing the transformation pack, you will be presented with the option to install the UXTheme Patch, files and extra items (e.g. wallpaper, visual styles, etc). You may select all or some of these options to continue. For example, you may not be interested in installing a screensaver, wallpaper, etc from the pack. To uncheck these items, expand the options to deselect items from the Files and Extras options. Click on Install to begin the installation process.
NotePlease bear in mind that such transformation packs are difficult to uninstall and often a system restore point will not revert the changes. Before installing the Lion Skin Pack, make sure that you backup your computer to revert the changes (if required). Moreover, make sure that UAC (User Account Control) is disabled.
After the installation is completed, reboot your system for the changes to take effect.
Download Mac OS X 10.7 Lion Theme/ Transformation Pack