Help pls..how can i watch downloaded replays? It doesnt dhow up in the replay sextion, i can only watch my previous replays..

Im playing custom games, just 4 practice. When i want to join a game, it says that download required..Does all games need prior downloading b4 starting the match? I already have the maps needed.

I have trouble downloading the maps. After a while, it states that " there was downloading. Pls try again later"..is it internet problem? though on the tumbnail on the right, it says downloading...