I've just upgraded from utorrent 1.8.5 to the new 2.2 version and I was baffled by the new graphics. They are awful. So i dug around and found a combination of files that would make version 2 look like the classic utorrent.
Download the archive from here.
The files need to go into %AppData%\uTorrent. %AppData% is a shortcut for the user's application data folder, and we use it here because on different versions of Windows, %AppData% is located in different places. In Windows XP, it's located at C:\Documents and Settings\Username\Application Data\, where Username is your Windows username. To locate the correct folder in any other version of Windows, hit Start, then Run, type %AppData%\uTorrent and hit Enter.