Is the email offered for free made up of actual POP3 accounts?
No, they are forwarded accounts.
When I go to enter my email addresses on the third level domain information page, only a few blank lines appear even though you say I can have 50 email addresses. Why?
Initially, only 3 lines appear for you to enter your email addresses in. If you use the available lines and click "Modify", then more lines will automatically appear the next time that you load this page.
