I take it you are using the new PB. I did a couple the other day and what you have to do is first upload your picture/s, & save, when you can see it/them tick the little square box and then choose the last option under the photo (img thumb) and highlight it using left click of your mouse
& holding it down till you highlight all the writing, then right click and choose copy.
To copy it into COL,
Open forum & PB. in seperate tabs and in COL and go to photo threads,
start new topic, and then in the large space, right click and choose 'paste' and hey presto the writing will appear. Click preview and see if your picture appears, if it is in preview it should show in post. The idea of opening COl & PB at same time is so you can swap from one to another easily if you have more than one photo to post. Leave a couple of lines between each link & you will be able to write a title to each photo if you so wish BEFORE posting.
Hope this makes more sense than it looks
anybody got an easier way? I'm sure it will be appreciated