RE: another darn ryobi post (ryobi performance modification, analysis and comparison)
Instead of using "FAST REPLY", use the "POST REPLY" and you will see the upload options at the bottom of the edit page.
The pictures must be in your compluter.
If your pictures are in a repository like PhotoBucket, you must right click the picture in photobucket to get its location and then use
[img]picture url[/img] in the RCU editor to make the pictures show up.