OS X Open Directory Authentication failure

hi,

We have used and enjoyed phpScheduleIt for a few years with our FreeBSD servers running Apache and OpenLDAP. However, this year we've switched our LDAP to an XServe running leopard Server. The LDAP flavor is Apple's Open Directory, a slightly different beast.

Anyway, all our other web applications authenticate okay against our new OD, but not phpScheduleIt. It seems to fail on the binding step. If I comment out the code that performs the bind (our directory does not require binding), it proceeds onward, but fails the authentication (Invalid username/password).

Has anyone managed to get phpScheduleIt working with OD? What settings were important on the server side?

Thanks
John