The passwords are required because we don't want everyone to be capable of unlocking / locking a players name.
Desktop resolution will be added in the next update, since ET changes your screen resolution I can imagine this being necessary !
(Haven't thought of it myself because I use 2 screens :p)
I have build this program myself, you can scan it with whatever tool you'd like, we are not going to inflict damage to our own userbase...

About the website: I have no idea what's that about, but I have scanned it myself with multiple tools and 0 trojans found.