Pull up your apps tray and scroll down and open Weather Widgets. When it opens scroll down to weather skin preferences and clock skin preferences right below it. Click on clock skin downloader and download some skins. (or weather skin downloader) Hit back to get back to your weather widgets settings. Now click on "install clock skins from SD card". It will pull up skin files you just downloaded. Click on one and then click OK, and click home. In a couple seconds the skin will change. If you don't like it, repeat the process until you find one you like!