Show all maps problem...

[Nightmare]

the unknown bla bla is the mapper's fault for not putting a map message in.
"Douze - By makKe"
"Lainio - By Halo"
etc.

Not sure on the main parts of your problems though. :'(
I've never seen map previews or a thing on the left side showing what to type to get the map, or anything like that. o_o;