What I do here to include images in a TreasureNet post:
1- After clicking on "Post new Thread" (or Reply") I type my text and then scroll down that page to the "Go Advanced" button, and click it.
2- When the "Advanced" page appears, I scroll down it to the "Manage Attachments" button, and click it. That causes a "Manage Attachments" webpage to appear, as a second window,
3- When that page appears, at the upper left I see a stack of five short-and-wide boxes, with a "Browse" button at the right of each box... and on the far-right, an "Upload" button. Clicking on the "Browse" button allows you to select a folder and your computer's hard-drive, and then select an imagefile from that folder.
4- When I've finished selecting the photo(s) I want to add to my post, I click "Upload."
5- I then click on the first window, and click "post."
The "Manage Attachments" window also has a button to "Upload Files From A Website" -- but I've never used it. That window also includes a list of all the file format types (such as .jpg, .gif, .bmp, etc) which you are allowed to use in T-Net posts. Make sure the filetype you want to post is allowed by T-Net.
