Need suggestion on distribution

[Need suggestion on distribution]

I am relatively new to Linux.

I have tried Mepis, Knoppix, Fedora, DSL.

None of them do what I want....

Here is what I am looking for :

I want a distribution that self boot from CD right

into a website and does a login to a web application.

Kind of like a kiosk bootable PC.

Knoppix is a good start but I was not able to modify the boot to get it to login to a web application.

Can some gurus suggest a couple of ways of doing this.

Thanks.

PS: Remember that it has to be easy because I dont know the internals of Linux.