brand new club

I am mentoring a new club; they should receive their charter any day now from TI. How do we go about establishing their FTH website?

if they have filed their ATO and paid the Charter fee they can request a FTH site using the request for unchartered clubs.
www.toastmastersclubs.org/welcome/

HI Brian, thank you. Can I set up their website as an administrator, and then change the administrator to one of their members? I'm a club mentor. If I do this, should I use their email address, or my own? Can the admin email address be changed later?

You can change the club admin name and email address at any time. If you change the admin to one of the new club members, it's best to use their email address. If you're initially concerned about their getting into difficulties, you could share the password for a while, though we don't normally recommend that.