Registered members can insert pictures into your forum posts. Here are the instructions:
1. From the Add/Edit Post page, make sure the Rich Text Editor option is selected and that you can see the formatting/editting toolbars.
2. Place your cursor at the point in the textbox where you want your image to appear in the post.
3. Click on the Insert/Edit Image button 
4. The Image Properties window opens. Click the Browse Server button to define the location of the image.
5. The Image Gallery window opens. Click on the icon for the Attachments folder. Users can upload images to this location on the server.
6. To add a new image file to this folder, click on the Browse button. Locate the image file on your local computer, and press the Open button to select it.
7. Click the link to Upload New File to transfer the file from your local computer to the Attachments folder on the server.
8. After a moment or two, you should see an icon and file entry for the file you just uploaded in the Image Gallery windows. Click it.
9. You should now be back at the Image Properties windows. Click OK to insert the image in your post.