Lea yes it was easy on my computer.
If you try it I hope you find it easy too.
I copied this from another post since I don't know how to attach thread links.

First I would like to thank George "Culln5" Ellinger for this great tip.
- Go to http://www.tinypic.com
- Click "Browse" to find your picture file on your computer
- Use the "Resize" dropdown menu to select your picture size (Message Board 640x480)
- Click "Upload"

The result will be BBC html ready, just copy "Image Code For Forums & Message Boards" and paste! There is no need to click on the "Insert Image" button.