For a same server install,just install series 7 software,it will be under cer2 instaed of cer1.
If you already have netscape directory servers installed and configured, leave them.
Export your Acess manager 6.5 asLae file,and save it.Open Acess manager 7 and import the lae file.
Open your Powerplay 6.5 and Impromptu 6.5 reports and catalogues in series 7, and tick úpgrade'when prompted, then save and close.
Get rid of Powerplay enterprise sever and upfront version 6, and reinstall and set up from scratch unless you have lots of reports and cube views sitting on it, then do a backup as per documentation.You will then have to pack up Upfront and unpack it in series 7.
I found it easier to just recreatethe web stuff- especially as IWR reports use Upfront now.