200k Credits Challenge

Well, the Gambling Hall has been nice to me, so I'm going to try to pass my luck to some lucky person here! This will be a challenge with 3 parts, once you solve one part, your solution will give you the place to go for the next part. Have fun! Only one person can win, so you better hurry up!

PS: It may be quite difficult

and NO HINTS WILL BE GIVEN UNLESS I DEEM IT APPROPRIATE

EDIT2: Fine, fine, here some hints

Challenge one has to do with the image (file) itself.
For Challenge two, the star is significant.
Challenge three may jsut be a bit evil... Maybe I'll change that one... But, for now, it has to do with JavaScript.

EDIT: Only use what I give you, because that's all it will involve

Now, here is your first challenge: