Thanks a lot! I got the hang of everything except partialy 1.
It shows on another server a different color for ~ and & but that's because they just have those mods visible on the channel user list
However on the server I normaly use you can have (for example) +ao and it will still show @ in front of your nick, or if you have only +q it will not show anything in front of your nick, so I guess mIRC can't see that +a or +q mode so easy...