And on this blog themes on average its only themespack its course.

If her themes was made ​​from a 3rd party usually include in it the folder containing the icon, sound etc., so that themes replaced in its entirety, then the existing files on your computer that is; uxtheme.dll, themeservice.dll, themeui.dll (the third position of the file in C: \ Windows \ System32) should be in the patch first.

Sometimes to install themes from a third party is not as easy as installing themespack.

This software is made by deepxw, which works on Windows XP SP1, SP2, SP3/2003/2008/Vista, SP2/Windows 7 32bit (x86) / 64bit (x64). This software works in background and will automatically patch to the files: uxtheme.dll, themeui.dll, themeservice.dll in your windows 7.

Now extract the file and select the program that suits your windows, I demonstrated Windows generally X86

Then Double Click if error, repeat with right click on the program you want to run select Run As Administrator

This program will automatically create backups, and in case of mistake or error or default of the old themes can restore back.

And for the last step :

Restart your PC and save the 3rd party themes, at C: \ Windows \ Resources \ Themes

example :

Previously we had to download and extract the download results like the above example. Midnight and Midnight.theme folder copied to the directory C: \ Windows \ Resources \ Themes
that will be like this:

Then double-click the Midnight.theme ... then automatically you will change themes ...
 

Good luck... (ThemePack-Gratis)