I suspect, as Shal says, you aren't going to be able to "port over" using the easy-transfer method.? Reality sucks sometimes.? What you can do (IF you can look at the member list of the inactive yahoo list) is download the membership roster in .csv format, then "invite" all of them individually to join a mirror list on groups.io.? You won't be able to move the message history over but you can download the photos and files to your own computer and then upload them to the new list.? Lot of trouble, but it will depend on how significant the photos/files are as to whether it's worth the time and trouble.??
I've been trying to warn some of my friends about the vagaries of yahoogroups recently, and most of them are either ignoring me or pooh-poohing me.? At some point, they too will find that their lists aren't functional (as I did) or useful because of unresponsiveness in the tech support area, so I guess some folks just have to learn the hard way.
Bill?
Bill Hickey - WA3H