It's good that your game is back to normal - it's easier to finish that way!

You are correct that the v1.0 and v1.1 savegames are incompatible. In fact, if you were to install v1.1 while you were playing v1.0, your savegame would be deleted by the new version. I really recommend playing again with the new version, once you finish your current game. You can download the new version from here: http://www.ldw.com/zips/vs1_1.zip Of course, your v1.0 reg code will work with v1.1!