The image icon allows you to insert an image that is already on the net, which is probably the most popular choice. If an image needs to be uploaded, then the attachments system allows you to insert it in to a post. I agree, it's not ideal, but its the way the forum software works

. I'll create a post which explains how to upload images, as I'm sure others will be having the same problem.
If you go to
\\D810\ADABack using Windows Explorer, are you able to trace the local directory? It looks like it was mounted using this share name, as you can't mount a local directory without using a UNC path like that. It all looks normal to me