A Federico RE

Can someone tell me why when I manually download the map, add it to the "cstrike/download/maps" and try to connect to the servers it gives me an error saying "Could not CRC ze_example_xx, disconnecting"?

11am for GMT-4 (Venezuela, Bolivia, Chile, Puerto Rico, Paraguay)

So A LOOOT of years ago (7 aprox) I used to play the servers of the "ambrosia community", it was an European one, British I think. Does anyone knows what happened to them? When did they closed? They had lots of servers of different mods