I was able to click and drag the thing into netbeans no problem except for one class that can't be found, "BuildCommit", which seems to be needed to tell the server what build you're using. Part of svn or something?
Netbeans uses ant for compiling (
http://wiki.netbeans.org/Ant ) so working on it in windows doesn't look like a problem.
basically you would just need to download and store the xml file instead of directly opening it from http. I think megaman had started working on that.
Looks like that's line 354 in QuakeInjector.java which seems to try to deal with an inaccessible online database. I guess the only missing component is saving the xml to disk?