your user id is what you see under view-->options-->connect-->identd on the UserID line. generally its a good idea to have that be the same as what you see before the @ under view-->options-->connect, the email addy line. Note that it doesnt have to be your name, in fact its best not to have your real name there, most ppl put something silly (like mine says fatchance)

ParaBrat @#mIRCAide DALnet