Re: loop with screen "Tiki Installer Security Precaution"
I am sorry for thinking the username and password you provided were the wrong ones.
When you go to the tiki-install.php, you are not getting the install steps to populate the database, so the database is populated. How did the database originally get populated? Did you get through the install's populate database steps before you got to this error, or are you trying to upgrade a previous version of Tiki? You said you tried 7.0 first, did the database get populated when you tried 7.0? If you did, then you would have to drop all the tables and start over if you are going to run 6.3.
The Tiki tracker item you link to is for a Tiki install on Windows, is this a Windows install?