Photoshop will work, choose file/new, then edit/paste then save as a copy, and choose .jpg.

Hosting, just upload them to your webpage and choose the "image" button below, copy and paste the url from the pic and whalla!

2000 SVT Contour - Silver # 1675/2150 For Sale195/55/15 Bridgestone Blizzaks on Steelies <10k miles - $300 PM me for more info