Ok, i've compiled a copy that should work properly on 10.6.8, unfortunately I have been unable to get a VM up and running and therefor unable to get it tested properly. So although I cannot guarantee that it will work you could try:
http://www.sqlitepro.com/bugfix/SQLiteProfessional.1.3.Bugfix1.app.zip
With any luck, you will have no problems. Any with any luck, I will have a VM running soon so that I can do proper testing!