Teach Me How to APBA

No, the title of this post is not some new hiphop dance moove sweeping the nation by storm.  Instead it's about a card game that I recently discovered existed, but seems like something I would love to get involved with.

APBA is a cardgame that as far as I can tell challenges participants to play as a team from one era vs a team from another era.  Want to know who could be the Murder's Row Yankees?  Want to pit them against the 1990 Reds Nasty Boys bullpen?  Do it!

I picked up a teamset of the 2016 Pittsburgh Pirates for $3 and have absolutely no clue what I am looking at.

This is the player card.

This is the back.

Here are some cards with players nicknames on them
Jared was only a nickname?  I never knew that

I honestly have never heard Francisco Cervelli called Gazoo before.  #themoreyouknow

Anyone know how to play this game?
Where can I get other team sets?  I would love to grab the Pirates team sets for 2009 to 2015 so I can add the Cutch cards.