That other site doesn't allow for pictures to be shared elsewhere unless on is logged in there. You are free to host them on here and use them on other sites tho.
And how do I do that? I don't see a button for attachments, so the only thing I could figure out was to link to the attachments at the other site.
There are a few ways. For an attachment go in and edit the post. Click on the Advanced button. Then scroll down and you will see the attachment manager. You can add images to an album. http://www.motoringalliance.com/forums/how-do-i/517-images-how-do-i-add-image-post-my-album.html#post1536
