i'll try to make it as simple as i can. visual styles, or msstyles can be loaded in windows without any software. all you need is a modded uxtheme.dll file, which can be downloaded here:
http://www.neowin.net/forum/index.php?showtopic=308905
that should patch and modify your uxtheme.dll file for you. after that, download any visual style you want (NOT a windowblinds skin). most likely the file will be a .zip file which you will need to extract with winzip, winrar, or any other archive extractor. then find the "windows visual style file" that you extracted, double click it, and then apply it.
windowblinds is completely different from visual styles. windowblinds skins can only be used with windowblinds software.