I know about the bugs in missions 3 & 4. They haven't been attended to (yet). If restarting from a saved game crashes it at the same point, then the crash condition is already saved, and you can't avoid it anymore. Only option is to restart the mission, as Sirbomber sugguests.
As for the website: i don't want to be spending a fortune on a free project, so i don't rent a webserver, i operate one myself... I've had this software for years already - no problems (on a win98SE machine). Since about 2 years or so i moved all my domain stuff to a win2000 system, which haves my webserver crash every now and then. This happens at random intervals, mostly 1~5 days. The monitor for this system is normally off, so i won't know about it if i don't check it -which i do from time to time.
I'm thinking about formatting the system and just putting 98SE on it, so the server can run without a problem. As for now: just keep trying, i restarted the system again this morning
PS: as soon as there is again someone who can offer free webspace (about 20MB worth of it), i will move the renegades site to it.