[Orgmode] autoload org-datetree-find-date-create?

[Stephen Eglen]

Within the agenda buffer, if I type 'i j' to jump to the current date I
get:

Debugger entered--Lisp error: (void-function org-datetree-find-date-create)
  org-datetree-find-date-create((1 20 2010))
  org-agenda-diary-entry-in-org-file()
  org-agenda-diary-entry()
  call-interactively(org-agenda-diary-entry nil nil)

If I then do M-x load-library org-datetree

and repeat 'i j', it works.  Should this function be autoloaded? 

Stephen