@Mytran - I just looked and do not see any upload attachment function either. Just the insert URL buttons.
In the User CP there is a Pictures and Albums section where you theoretically could upload images and share them. I haven't tried it yet.
@Robert Comsol - I still recommend using your own image hosting service. Looking forward to seeing your interpretation of the Enterprise in your thread
I have aft phasers in this TOS Enterprise thread but no aft torpedo launchers