幫我製作部落格背景圖

我研究很久但我還是不懂如何製作我部落格背景圖可以幫我製作嗎?我部落格如下:http://tw.myblog.yahoo.com/jw!4LpuVlyWHxvdPcvcEH7tGmM3JA--麻煩囉
粉色龐娃背景：/*Background image for whole page禹熙制龐娃背景圖*/BODY { background: white url(http://img444.imageshack.us/img444/4202/16an6.gif);background-attachment: fixed }黑色龐娃背景：/*Background image for whole page禹 熙 制 背 景 圖 */BODY { background: white url(http://img339.imageshack.us/img339/87/rw12gu8.gif);background-attachment: fixed }綠色龐娃背景：/*Background image for whole page禹 熙 制 背 景 圖 */BODY { background: white url(http://img256.imageshack.us/my.php?image=rw13qx0.gif);background-attachment: fixed }橘色龐娃背景：/*Background image for whole page禹 熙 制 背 景 圖 */BODY { background: white url(http://img340.imageshack.us/img340/1568/rw15mx2.gif);background-attachment: fixed }藍色龐娃背景：/*Background image for whole page禹 熙 制 背 景 圖 */BODY { background: white url(http://img339.imageshack.us/img339/210/rw2wi0.gif);background-attachment: fixed }紅色龐娃背景：/*Background image for whole page禹熙制龐娃背景圖*/BODY { background: white url(http://img340.imageshack.us/img340/6779/rw14zo3.gif);background-attachment: fixed }這是我的部落格：http://tw.myblog.yahoo.com/jw!Pt1V5xeICBTbiuXauaOyq3Cm/searchblog?p=背景