Bitmap name would be the name of the wall {ie: heresmywall}
.zip - zipped wall {could be one or more than one - zipping helps dialup people}
port - did you take someone else's wall (with permission of cours [and include that] and modify/recolor/change? if it's yours and all original = not a port
description - text isn't added to wall, it's the information about the wall people will read
I may not be exact, but I"m close
