Permissions for webadmin access on FC4

I know I'm probably going to get slammed for being an idiot, but oh well . . .

I've finally got some help (volunteer) for the church webserver I host at home. It's an FC4 server with Apache 2.x installed. She's from the M$ world and asking me about ASP and DreamWeaver access, which I told her was a no go. Learn PHP! :)

Anyway, I created a webadmin account that I want to have full access to the /var/www/html folder tree. I added that account to the apache group, but that didn't work.

What is the proper process for accomplishing this? I don't want to give this person root access to the server.