You "Hot-linked" them from the site.
You can try attaching them via posts or put them on your own host.
"Hot-linking" is using somebody else's bandwidth to show the images. With them in the post the way you had them, anytime anybody looked at this thread, the bandwidth of the other site was used, not yours or TIMO's.
Proper ettiquette is to host your own images, also, attaching them is easier on those that don't have broadband.