Hi Alpie,
You cannot attach pictures that are on your "C" drive . . .
We have no access to your drive and it is not put into anywhere on CS site.
You have to find a website or web gallery to host your pictures first . . .
Then when you post it, key-in the address into the pop-up box . . . the picture show appear.
There are some website that does not allow 'hot-link' (meaning you picture will not appear; but will instead just appear as a hyperlink only)
Hope that helps