I'm pretty hopeless when it comes to computer stuff, but photobucket is pretty easy to use, and if I can figure it out, anyone can. It's free to have an account, and if the picture's on your computer, you just upload it into your account. Then there'll be codes underneath the picture. You want the IMG code, so you highlight it, right click and you'll see copy, left click on that, and then when you post, right click and you;ll see paste, and left click on that. This puts the IMG code in your post. I always preview my post to make sure the picture shows up OK. I think that's how I do it! I'm sure someone else can explain it better, but you just have to kind of experiment and you'll get it.
Looking forward to seeing the picture! Thanks!