If you create the pages manually, you will need to configure the Access rules manually as well.
In the Authenticate user behavior, the sessions tab allows you to select columns to store in a session on login.
the default is to store the ID column, use that session as the basic access rule.
In the Access rules manager, create a Logged in rule, For the Value, select the ID session variable. for the Criteria, select "<>" (Not Equals), leave the Compare to section blank.
this is a basic rule that will allow access if the user ID session is not empty. you can create more complex rules for user level authentication if you like as well. On the security Assist support page, there is a user level authentication tutorial in the Archived documentation section. It was written for v1, but the concept is still the same.
if you run the wizard, you can edit the validation after the pages are created. the validation will use server validation and spry. to edit the Spry validation settings for an element:
Select the element in Design view, notice the Blue Bounding box that denotes the field as a spry field, click the Blue bounding box, this will trigger the spry settings in the property inspector.
to edit the server validation:
Open the server behaviors panel and double click the Server Validation server behavior. Select a validation form the list and click the edit button.