One more person with the word nova in their name. Am i missing some kind of reference?
Welcome to TF2maps. If you're being kicked from a server because you don't have the map it's because they havn't set up a local or external redirect to host the map files for download. Try and find a server that is more dedicated to custom amps that they actually have a redirect for maps. They'll usually have a forum and online community presence too, like us.