PB has pretty good step by step instructions for loading photos. The one thing I highly reccommend is to name the folders that you wish to put the shots into - so that you can find them faster when you go back into PB. You can choose a system that works for you. I like to create topic folders, i.e. view, cooking, kids, dogs, etc...
Once the pictures reside on PB - you pick one, put your cursor over it,and a drop down will appear. Scroll down to the bottom of it, and click on the "img (image) link"
Then, go to the body of your message to post, and click on your mouse to post it. Than simple.
But, it may take you a little practice to get comfortable with it - but once you use it a few times, you will wonder why you worked so hard to do it any other way.
The one downside is that it will automatically re-size the shot. So - if it is a good one that you want to keep a larger version of - make a copy of it, and then load the copy to PB.
Let me know if I can be of any help!
T