A few more small fixes in this beta, and one or two larger ones. There are a few more fixes for encrypted journals, including exporting certain entries out of them. The separate entry editing windows should remember their size and position and show up when you relaunch on Lion. Performance of some things, including multiple selection, should also be improved.
6.0.3 will be out by the end of the month, so let me know if you have any problems. Use the Report an Issue item in the Help menu to report issues with this beta.