@Bluewhisper
I see nothing wrong. I am actually unfamiliar with this snippet, but I did download it a few minutes ago and played around with it. I added a server and double-clicked it and it connected fine. It's currently been connected for 5 minutes now.
Did you do the update to Version 3.92 upon loading the .mrc file?
Edit: to anyone who has a fix to being able to identify registered nicknames using this, let me know. Lol. There's no option for it :( I tried @Cheiron's suggestion and it didn't work >.<