http://forums.steampowered.com/forums/s ... rved+slots
looks like you cant "reserve" slots with a source server yet. best thing i know to do is if you want in and cant get in jump on irc and get tony to kick someone or msn one of us.
the guy mentioned you cant since there isnt a "admin mod" for source ... i pmed one to badscript but im not sure if it allows you to set reserved slots or not.