Unfortunately, ActiveSync automatically syncs changes made on either end since the last sync if all the changes were on one end or all on the other. There's no setting to let you choose the direction to sync. The only way to do this is to delete the partnership before synching. If you then have items on the databases on the E-100, when you re-create the partnership, it will ask you right before synching if you want to replace the information on the mobile device with the information on the PC or if you want to combine the information from the device with that on the PC. The second of those options will accomplish your objective.