Register

[Pankaj Ahuja]

I need to have a system on my site where I ask people to register and upon
registration, I send them a password. While filling in the registration
form, the user has to fill in a username. I need to check for duplicate
entries. How do I go about this?

b)  Also, the members can login and change their profile. How can I check
the username and the passwords and show them the desired record

Thanks
Pankaj Ahuja