sync to proxy OR import from proxy?

[Eupher]

I have a calendar resource in GW 6.5 (used as a master calendar) to which I've given read-only proxy access to everyone in my office. I'm dumping appointments into the calendar from an Access XP database. Works great so far. However, I want my users to be able to sync their PDAs to the master calendar. We have Intellisync v.5 now, but would consider switching to SyncWise or other sync software if necessary.

1) Is it possible to sync via proxy to the master calendar?

OR

2) Is it possible for users to import the entire master calendar (or individual appointments) into their own accounts' calendars?

Thanks for any advice.

Ken S.