Hello Dear.
read that all what I write as info for you.
1-first go to your FTP, to your server
2-Now creat new file whit name dolphin7
3-Now download autoinstaller from http://www.primanet24.com/downloads/Dolphin-v.7.0.exe
4- click on Dolphin7.exe on your browser
5- accept the agreement and next
6- Install to a remote machine
7-give ftp accees for server and click on Browse to fine file dolphin7 which you have creat via ftp
8-and next, follow infor from autoinstaller.
after upload dolphin7 beta on file/dolphin7 open browser www.yourdomainname.com/dolphin7
install dolphin7 on your server whit new datebase.
After install go admin panel www.yourdomainname.com/dolphin7/administration/
now go admin Module > Date migration
click on Set Configuration
now fine wher your old dolphin absolute path
Like : /home/yourdomain/public_html/
after setting go Data Migration same page
* Select the data: first start transfer Profiles
it take about 30 min, if you have 2000 user
after start all data poll , events ....... you can start all same time no problem.
Good Luck