I played ~60 hours with 1 crash (When I mounted a horse with summoned Daedric items). ALL Your drivers super brand new?
As far as that quest, combat is a BITCH in this game... don't level up though hahahha... you must be super low level, because all of that stuff is leveled... I had to fight DAEDROTH to get through there... luckily I have a nice shock spell (All daedra are weak to shock!)
SCREENSHOTS! You have to edit the INI, then it is prtscrn...