Goto the photo yall wan't, put yer pointer on it, a list should appear, go down the list to IMG code, click on it should turn blue, put yer pointer over that blue area an right click an copy, now just goto yer post an right click again an hit paste.
I put each collection into a new album.
When all the photo's are uploaded, I click Select/All at the bottom and click "Generate HTML and IMG code", then copy the code for the
"IMG clickable thumbnails for message boards - recommended "
and paste them into the post box here. It'll look all funky until you preview or submit.