.."tick 'Attach files' box on left in Post Reply box (or click Attach top right to edit attachments after posting)
then,when u hit 'Post', a window appears where u first browse and then 'upload' picture from your drive/stick etc..make sure pic is compatible file type (eg. jpg)
click 'back' and your pics are attached..!"
-Thanks,Nen, i've also struggled with this one in the past!
"Eat your vegetables and do as you're told, or you won't be going to the funfair!"