I have been evaluating OP6 for the last week or so and I saw OP7 this morning.
I uninstalled OP6 and installed OP7. I started OP7 and got the message that something was already running on port 8060. So I ran the changeport script to 9090 and now when I try to access OP7 I get the following:
*** Start message***
Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, admin@india.adventnet.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.