Hehe. Drive C is your harddrive. Don't use the path as that doesn't lead to anything.
What Afterlights said is the best thing.
- If the picture is too large, reduce the size using Microsoft Paint. The picture has to be less than 1 MB in order to fit on the board.
- Otherwise reduce the dimensions of the picture in Microsoft Paint. That may help reduce the size as well.
Use the "Attach files" box - it is shown as the paperclip.