Finally........... i can use photoshop.
-_____- okay this is embarrassing but really i can't use photoshop before this. I follow the tutorial in Pastel Girl by Sabila Anata. And yeah, i wish i could as creative as her. To see the tutorial click here.
And tadaaa!!! i made this anigif clipping mask, using Photoshop cs3 and Photoscape v3.5 :D
You can try it. It's easy! just follow the tutorial :D GOOD LUCK :]