Upload pics to your PC.
Log on to Photobucket and set up bulk uploader.
Tell Photobucket which file of pictures to upload and it will then upload a whole lot at a time.
Put them into an album on Photobucket.
When you then put your mouse 'arrow' over a photobucket picture you will get a drop down with a variety of codes for URLs etc. Right click on IMG code and copy it.
When you then do your message on the forum paste the code in - it will just come up as a code at this stage. Once you have finished your message, if you want to see what it looks like with the pictures in it, click preview and it will come up with your message with the pictures in it. If you are happy with it - post.
PS I have the forum running on one tab and photobucket on another - I can then copy an IMG code and go back to the forum and paste it and then back to photobucket to get another one etc etc.