That reminds me, Mac 128, why don't use just use Zterm on your modern Mac, and MacTerminal on the 128?
MacTerminal 1.1 was the GUI Mac-Like plug-n-play interface. It correctly handles the resource forks on the file so that it does not need to be compressed to be transferred (a bit of a hassle on anything less than System 6). So, you basically find the file you want to send and send it. It shows up on the other Mac exactly the way it appeared under the Classic Finder using ClarisWorks, which uses the MacTerminal 1.1 protocol. I could never get Zterm to work as smoothly and the files never made the transition intact. With MacTerminal, you just double click them and they work. I even wrote to the ZTerm people at one point asking them to add the MacTerminal 1.1 protocol, but it never happened, AFAIK. ClarisWorks was the last communications package I'm aware of which supports the MacTerminal 1.1 protocol.