Uploading pictures to gomxforums
First you need to find a way to host the image you wish to upload.
If you have your own image hosting account somewhere (ex. Photobucket, tinypic, etc.) upload the image to that website and copy the URL.
If you do not have your own hosting site you can use the public Photobucket account:
Username: gomxforum
Password: AZmoto
Uploading Images using Photobucket:
After logging in using the credentials above click on Upload Images and Videos

Find the image you wish to upload and click Open

Enter the image title and a description and click on My Albums on the top

Mouse over the image you uploaded and point to HTML. Right click in the box and click copy.

Go back to gomxforum.com and log in.
Find the thread you wish to add the image to and click on that link.
When in the thread you wish to reply to paste that image code into the text area and click Send Post

Enjoy your new image in your post.