lost freelancer.exe!

[Minstrel]

Yep, title says it - my PC is giving me the message that it can't find freelancer.exe so I think I need to reinstall everything. A couple of questions -
Q1 - last time I got to a point in the install where I tried to follow the instructions to install discovery in a different directory from vanilla but the install would ONLY work if I chose the SAME directory as vanilla - where did I go wrong?
Q2 - once I get Discovery reinstalled how do I reconnect to my account?