It is possible to integrate this with 3.2. It could be used as an alternative to scenario workshop. Some partners have though wanted to have this as a separate tool. The reason for this is to enable the possibility to utilize Delphi survey for other purposes than scenario building e.g. assessing future development and application of new technologies.
We cannot help that you need to log-in twice as this an external application.
Do you have problem to register to eDelphi? If that link is not opening, the reason is most likely at your side, not eDelphi. We had similar problem at Aalto University, which we solved through contacting our IT helpdesk, who changed some firewall settings at our University. After that, the link worked fine. I can act as an intermediate between you and your helpdesk in case you need support for this.