You might be using MSN as you ISP, but you don't have to use IE to make use of it.
I have been on broadband for a while, but when I did use dialup (it was a small local ISP) my start page (like it is now ) was Antionline. When I clicked on what ever browser I wanted, I automatically dialed out and connected. The browser (usually Firefox / Firebird at that time) would load my start page and I would never see the ISP's home page at all.
Yeah i know that, but isn't MSN a seperate program/software (like when you run AOL, you see the AOL's GUI, but you dont have to use their broswer, i used FireFox when i had AOL too. Im just saying, if he aksed if he can configre FireFox to dial-out and be online.

How do I set it up to dial out, etc.
it's not possible i think, he still would have to run the msn software, then when he's online, he sure can use any broswer he has and change his homepage to whatever he wants to !