internet dial up connection box EXTRA name shows

i pay for both aol and msn accounts ..so when the dial
up connection box comes up .. i use the - to pick which
account i want to dial ..the slots used to type in --
read top to bottom like this first SLOT and SECOND
SLOT -BOTH -read SELECT CONNECTION ... however, 1st
one - wants the ip you want to use (like aol or msn ),the
2nd one wants MY screen name and the bottom one wants my
password ...... OK WHEN I PICK TO HAVE TOP SLOT as MSN
the second shot below is blank & where i type my own
screen name in .........however when I PICK AOL for first
slot --the 2nd slot ALREADY HAS a screen name & a password
typeed in AND IT IS NOT MINE!! WHO"S WOULD IT BE ? I'm not
shareing my PC ,,,IMEAN im not net working . @nd
question --is there a way to send someone a e-mail useing
just their Ip address? thax Denni
girlygirlnextdoor@msn .com and /or ROUND1lake @ aol.com