Welcome to The Norfolk Broads Forum
This is THE Worlds Largest Forum devoted to the Norfolk Broads, here you can discuss issues about the Norfolk Broads. Or just somewhere to chat with others interested in the Norfolk Broads area.
I would book with Richardson's directly and will spend time with you if you are uncertain about the boat you would be hiring. For more information look on Richardson's website they have a number of introduction and instruction video's aimed at novices or for people needing a refresher.
Do some googleing, richardsons are not the only hire yard on the broads and you may get a more appropriate deal for your needs from elsewhere, but do try and book direct with whichever yard as theres no sense handing beer tokens to an agent, spend them on your holiday in one of the many good pubs.