I think i don't understand your problem. You CAN create and Sync events which raises in a few years - there is no limitation. If you sync with Outlook or other apps, then you can set a limit in the options.
When I sync MPE with my K800i, MPE just sync the events 3 months in the past and 3 months in the future, no more. I just sync MPE with my phone. The events are saved by MPE, not in Outlook or other any application.
I would like to know how to sync more than 3 months in the future, please.