Not bad for your first dialog it's a bit bigger than necessary and has a lot of unused space but not bad keep up the good work. I'd like to suggest using the list option in the dialog. if you used a list you could have it set so all the nicks in the channel get put into the list when it's opened then you can just click on any nick in the list and click on ban/kick or w.e but keep up the good work
thanx bro i make a new toolbar check dat. :) that one is cool i think :P