I found this neat prog to well.. Crack free ISP's... It shows you the raw info sent to the ISP when yo dial-up to it....
for example Netzero would be:

Phonebook: Netzero
Phone #:213-4283
Username: x0NlA6e9:4A0.5:yourloginhere@netzero.net
Password: Your Encrypted Password

With this prog you can take off the banners off of free ISP's
Have fun