pirith.

http://www.google.lk/search?q=Windows+7+themes&hl=en&biw=1168&bih=612&prmd=imvns&source=lnms&tbm=isch&ei=EU_rToHSGYrrrQeriqndCA&sa=X&oi=mode_link&ct=mode&cd=2&sqi=2&ved=0CB4Q_AUoAQ   

thems WINDOWS 7

http://www.google.lk/url?sa=t&rct=j&q=windows%207%20themes&source=web&cd=3&sqi=2&ved=0CFAQFjAC&url=http%3A%2F%2Fwww.windows-7-themes.com%2F&ei=EU_rToHSGYrrrQeriqndCA&usg=AFQjCNFmDRX7UNs6BmtrMPUT3xN25-KI3A