stg83: Managed to get to the Hackstore but now I have been stumped for quite a while.
JMich: Do take a look at the story thread for ideas. Might help.
Even before the hint went up it was kind of clear what you needed to do from the store, but you have to sort out what command accesses the currency in the btc file. I only poked at that for a few minutes before I needed to quit, but I didn't sort that part out.
Few other files in the game I didn't figure out how to access either (farewell, love letter to mary, alphabet rage). Since you can move on without solving those it wasn't clear if they were extraneous, solutions to particular games in the GA, or just false leads.
The other thing I thought was interesting is that I've been through the firewall 3 times - once there was an automap, and the other 2x not - so not sure if I did something different to cause it to load/not.
I might get some more time to take a crack at it in the next hour or so though.