his solution is simple - upgrade to m33 3.52 or reflash the same version. the m33 guys provide 2 versions of there program, one for 1.50 only and one for everything else.
i can't seem to get them to work. Is there an official one?
i wonder why they won't work - what happens exactly when you run them?
its not actually recommended to run official firmware updates from custom firmwares because it has a high chance of bricking. check your version in system settings - see what it says. so anyway you should try this only as THE last resort because if it doesn't work you will brick. if you can afford a modchip then you can consider this option but if you can't afford one i would avoid this as a solution.