if i ever sprite i find photosuite good. if your going to upload pokemon you've made from paint, onto photobucket or somewhere like that,then you tend to get the whole paint canvas,not just the pokemon,so photosuite (or any other software like that) is good for cropping down the picture.
and if no one has said it, you do need an account on photobucket or somewhere to upload your photos, so you can put them on the net.
you can get the img code from there aswell, so you can post them here.
btw,you should have paint on your computer,if you can't find it, try going to accesories,it should be there. you don't just have to use paint tho.