I have been out of the recording hobby for several years. Tech caught up with me. Sonar won't work on Windows 10. Bandlab does not appear to have a way to salvage .cwp files. I also have some old .wrk files from Music creator. I would love to salvage all my work.
I can relate in a sense. When Sonar went to the X series UI (Skylight) after Sonar 8.5, I was totally lost. However, over the years the UI became more and more familiar to me. In fact, I am still learning about features that were introduced after Sonar 8.5.
I think you are at a major disadvantage since you never migrated to the X series (Sonar X1 and successors) after Sonar 4. In my personal experience, Cakewalk by Bandlab greatly improves upon the pre-X series, though I do miss a couple