years ago I belonged to this yahoo group as I had a viking megaquilter and inspira frame. they were very helpful and I believe the 18" machine is the same as the tin lizzie or was
https://groups.yahoo.com/neo/groups/...ndQuilter/info Additionally since I was considering buying a tin lizzie I belonged to a yahoo group and it was very informative. I think this is the Tin Lizzie group
https://groups.yahoo.com/neo/groups/tinlizzie/info
Sorry you are having trouble. I ended up buying an APQS machine in 2009 so I stopped following the groups.