First off you'll need to store your photo's online somewhere.
Most of us use www.photobucket.com
You'll need to create an album on there and upload your photo's from your computer.
From your page of photo's, click onto each one that you want to post onto Forum, or if you want to sellect all the photo's from that page, click onto the button to 'select all'.
From here you then need to click onto the ' Generate HTML or IMG Code' button.
You'll now get a page with all different codes. Use the - IMG images for message boards code.
Copy & paste that onto Forum, your pics should then be displayed on Forum.

This is a rough guide to uploading photo's onto Forum.
It may seem complicated, but once you've got the hang of it, it's easy really.

Good luck, any problems just leave a message below.
Someone on here will get back to you asap.

Kev.