go to
http://photobucket.com/
open an account (its free)
then you can upload them yourself. It is EASY!!!
When they are uploaded, you get 3 options underneath each picture.
URL: you use for an avitar
TAG: No idea
IMG: this is the one you want
Cut and paste all of that into your post and you get pics.
Or click on the image and cut and paste what is in the address bar to your advert
Have a go, will only take you 5 mins to get used to it.
Nige
Let us know how you go. Post some here to see if you got it right