You need to host the image on a server somewhere (your ISP webpage, a free webpage, etc.). Once you do that, you simply put the address of the image between <[img]> and <[/img]> (minus the < and the >). Here's more info https://www.corral.net/forums/misc.php?s=&action=bbcode.
I used to have photopoint, but now use netsnapshot.com (free). After you post a pic, open it in it's largest form, right click and choose properties. You can grab the URL of the pic right there. Then copy and paste in the IMG window when you are replying or posting. Works very fast and very well.
'98 GT: '02 PI cams and PI intake, 3:90s Trick Flow Rear girdle, TF Plenum, Steeda Pulleys, Tri-Ax & Chrome Moly STB, Bassani X w/cats and Street Comps, Densecharger TB tube, 180 t-stat, Bullitt Susp kit 1/4 mile: [email protected]