Most of the members like windows 7 Theme. Due to its transparency it have good look. I found one freeware program in net. You no need to install this. Just double click on exe will give superb windows 7 theme. Surely you will like this. Download this 4 zip files. It having less than 2 mb. Extract it and double click on exe files. First one give exact look of windows start button. Second one gives start menu. Third one gives explorer window like title bar. Fourth one gives task bar in new look. It does not require more memory. You can download any file which you like and design your desktop. Now you are surprised how it is possible in 2mb.