Okay so last night after installing CM6, and getting all my apps and games installed, i did a quick check through and all of them worked, except for Word Wise Pro. I extracted the logcat, and found that the error was caused by the VM Heap Size being too low.
So, for anyone with apps force closing, go to Settings > CyanogenMod settings > Performance Settings (hit okay) > VM Heap Size: Change to 32m (the max value there). Then reboot.
should fix your problems!