[development] How can I customize user registration page?

[Huisi Wang]

Hi all,

I'm trying to customize user registration page by profile module. But
the fields I set by profile module are placed in another filedset, not
the same fieldset email and password fields are placed in.

How can I place them in the same fieldset ? to use hook_form_alter() ?
Are there any functions like phptemplate_user_profile() to be
overridden for user registration page style?

Thank you,

Huisi