Well since Pacman already took your request, I'm just ganna recommend you this substitution for Photoshop since you ain't be getting one :3 It's GraphicsGale, it's free, has everything MSpaint has, plus Layers, transparency, grid, testing for animation, easily setting palette and various stuff for pixel art ~
http://www.humanbalance.net/gale/us/You should get it if you ever need to edit anything next time. Trust me, do it yourself feels much better than requesting something xD
Or if you are like me, you can use student discount to get Photoshop 7 for 20% of normal price :3 Then you will never ever need anything else anymore <3