That is the initial step in the activation. notice you are only at 38%. If you proceed on this it will have you create your username/password, sign the TOS and bundleterms, and install the verizon toolbar, help and support icon, and several internet short cuts.
I would continue from where you are, but down at the end where it asks for "standard install" or "custom install", I'd choose custom and have it not install all the extras (unless you really want them). But you do need to continue to complete the TOS and Bundle terms if for no other reason.
As for your other verizon email. If you want to keep the old one, just create a dummy (something that you are not interested in keeping) during this process, and then call Verizon Tech support so that they can "repoint" your old Verizon address to your Fios and overwrite the dummy you just created. Unfortunatly, the email addresses are done by service (i.e. dial up, dsl, fios) and when you go from one to another, Verizon must "repoint" your email to the new service. Otherwise it will stop working shortly.
