I'm sure this has been asked, but I'm not even sure how to articulate my
problem, so I've had no luck searching for it.  I'm going to just say what
I've done and describe the problem, since I don't know what question to ask.

Okay, I'm trying to mirror archived stories from FictionAlley.org but the
story has an "Age Check"  If you click the link to open the story, you are
taken to a page that says "Are you 17 or older?" and only after you click
"yes" are you allowed to view the story.  there is no username/Password for
this.  The trouble is, when I try to mirror stories with this restriction, all
I can copy is the "Age Check" page, not the actual story.

What am I doing wrong and how can I fix it?